Temperature


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705596384
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Temperature

Postby 705596384 » Sun Jan 09, 2022 9:32 pm

Does the temperature given in a problem play a factor in finding the equilibrium constant? If so, how do we use the temperature to find K?

205783236
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Re: Temperature

Postby 205783236 » Sun Jan 09, 2022 9:36 pm

I believe temperature affects the constant. For example if you increase the temperature, K increases, causing the reaction to shift right. however I believe that you will not be given a change in temperature and asked to find the constant (at least not as of now in class).

Milli Zunich 3I
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Re: Temperature

Postby Milli Zunich 3I » Sun Jan 09, 2022 9:48 pm

Do you think we'll be asked something this conceptual on the midterm? Or would we just have to show our understanding by solving problems? I feel like it would be the latter, but I just wanna cover all my bases just in case.

Alaura Dis 1H
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Re: Temperature

Postby Alaura Dis 1H » Sun Jan 09, 2022 9:52 pm

Hi, I think that the equilibrium constant can be affected by the temperature of a system. However, I'm not sure what the exact relationship is if someone else knows?

Anjali Kalagiri 3F
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Re: Temperature

Postby Anjali Kalagiri 3F » Sun Jan 09, 2022 10:05 pm

Hi! Changing the temperature does affect the equilibrium constant because heat is considered a product or reactant in the equation. This, by increasing the temperature (adding “heat”) it changes the equilibrium based on whether the reaction requires or releases heat.

805401611
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Re: Temperature

Postby 805401611 » Sun Jan 09, 2022 11:06 pm

Yes, temperature does play a factor in finding the equilibrium constant. For example, if the temperature changes (e.g. increases), the value of the equilibrium constant will also change, depending on what happens with the temperature. For that reason, K is found depending on the temperature, and helps determine whether the reaction will shift right or left. Hope that helps!

Ashley Gonzalez Dis 2A
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Re: Temperature

Postby Ashley Gonzalez Dis 2A » Sun Jan 09, 2022 11:07 pm

Hey! I read that an increase in temperature causes a decreasing in the equilibrium constant because the equilibrium "moves" to decrease the temperature. The reaction will favor whichever side absorbs heat to decrease the temperature.

Cecilia Lei 3K
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Re: Temperature

Postby Cecilia Lei 3K » Mon Jan 10, 2022 12:03 am

Yes. Temperature is the only factor affecting Kc, and you should look at it with thermodynamics.

Melody_Tapia_1J
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Re: Temperature

Postby Melody_Tapia_1J » Wed Jan 12, 2022 2:02 pm

The temperature changes the value of K, but whether the reaction is endothermic or exothermic is what determines where the reaction will shift.

Rebekah Jung 1C
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Re: Temperature

Postby Rebekah Jung 1C » Wed Jan 12, 2022 2:11 pm

Temperature does affect the K value. Adding heat to a reaction will cause a shift depending on whether it releases or absorbs heat in the process.

Amanda Pineda 3H
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Re: Temperature

Postby Amanda Pineda 3H » Wed Jan 12, 2022 2:13 pm

Yes the temperature changes the actual value of K, but whether or not it is an exothermic or endothermic change will determine the shift in the reaction.

Ashley Wilson 2L
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Re: Temperature

Postby Ashley Wilson 2L » Wed Jan 12, 2022 2:45 pm

Equilibrium constants are temperature dependent, meaning an equilibrium reaction will have different K values at different temperatures. When you're calculating the equilibrium constant, you only need the equilibrium concentrations at the given temperature, but you don't use the actual temperature value when finding K.

BriannaDis2C
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Re: Temperature

Postby BriannaDis2C » Wed Jan 12, 2022 2:46 pm

By changing the temperature, the equilibrium constant is affected because heat would be part of the equation and increasing the temperature changes the equilibrium— the reaction resulting may require or need a release of heat.

405479701
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Re: Temperature

Postby 405479701 » Wed Jan 12, 2022 2:47 pm

yes if the temperature changes then the equilibrium constant is affected since heat is a product or reactant.

Talia Tam 3L
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Re: Temperature

Postby Talia Tam 3L » Wed Jan 12, 2022 9:53 pm

Changing the temperature will change K, but which direction that it shifts depends on whether the reaction is exothermic or endothermic.

Tara Cumiskey 3K
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Re: Temperature

Postby Tara Cumiskey 3K » Sun Jan 16, 2022 6:52 pm

Temperature does affect the value of Kp and Kc. For Kp if you change the pressure by decreasing the volume then depending what side of the equation has more moles of gas the reaction will shift. If there is more moles of gas on the right, then the reaction will shift to the left and vice versa.

Mekenna Faulkner
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Re: Temperature

Postby Mekenna Faulkner » Sun Jan 16, 2022 7:33 pm

Temperature affects both Kc and kp values. Kc is affected only by temperature making it important.

Monse Mata 3D
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Re: Temperature

Postby Monse Mata 3D » Sun Jan 16, 2022 10:22 pm

Yes, changing temperature affects the equilibrium constant since heat may be a product in an endothermic reaction or a reactant if it is an exothermic reaction.

Furkan Acar 3C
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Re: Temperature

Postby Furkan Acar 3C » Sun Jan 16, 2022 10:23 pm

Yes temperature is incredibly important in these scenarios. If temperature changes, I'm pretty sure the constant also changes.

Kloey Reyes
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Re: Temperature

Postby Kloey Reyes » Sun Jan 16, 2022 10:38 pm

Temperature increases and decreases affect the equilibrium constant directly proportionally. However, I believe we won't need to use temperature itself as a variable to find an equilibrium constant.

Mario Prado 1K
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Re: Temperature

Postby Mario Prado 1K » Sun Jan 16, 2022 10:40 pm

Hello,

Yes temperature can have an affect on K but only if it changes. When it just mentions the temperature this is to clarify the reaction and all its products and reactants are at that temperature. This way you won't have to worry about temperature having an effect on K.

Hope this helps

Aryan Gajjar 3D
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Re: Temperature

Postby Aryan Gajjar 3D » Tue Jan 18, 2022 11:11 am

The value of the equilibrium constant drops as the temperature rises. If you raise the temperature, the point of equilibrium will shift in such a way that the temperature is reduced once more. It will do this by promoting the heat-absorbing process.

Prithvi Raj 3E
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Re: Temperature

Postby Prithvi Raj 3E » Wed Jan 19, 2022 12:13 pm

Yes, the temperature does play a role in changing K. The impact on the K value depends on if the reaction is endothermic or exothermic. Exothermic reactions have a lower K, and endothermic reactions have a higher K.

Maddie Klee 3K
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Re: Temperature

Postby Maddie Klee 3K » Wed Jan 19, 2022 7:40 pm

Temperature is the only thing that affects the value of K. The change in K is determined by knowing whether the reaction is endo or exothermic. Exothermic reactions will have a lower K value than endothermic reactions.

Ivan Huang Dis 3B
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Re: Temperature

Postby Ivan Huang Dis 3B » Wed Jan 26, 2022 7:45 pm

a different temperature for the same reaction would give a different Ka value

105605391
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Re: Temperature

Postby 105605391 » Wed Jan 26, 2022 9:47 pm

Temperature is the only state variable that can affect the K value of a reaction, so it plays a pretty important role!

Coraly De Leon
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Re: Temperature

Postby Coraly De Leon » Sun Jan 30, 2022 2:33 am

Hey !
Temperature will affect both Kc and Kp values.

tristenleem3B
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Re: Temperature

Postby tristenleem3B » Sun Jan 30, 2022 2:47 am

The temperature affects K, but most likely all will be at 25 degrees C to keep consistency in calculations.

Ameerah Hameed 3B
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Re: Temperature

Postby Ameerah Hameed 3B » Sun Jan 30, 2022 3:09 pm

Yes, temperature affects Kc and Kp values. The direction the reaction shifts is reliant on whether it is exothermic or endothermic.

Alexandra Gill
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Re: Temperature

Postby Alexandra Gill » Sun Jan 30, 2022 3:11 pm

Yes changes in temperature do affect the equilibrium constant.

505734174
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Re: Temperature

Postby 505734174 » Sun Jan 30, 2022 3:47 pm

Temperature affects the equilibrium constant because there is a specific equilibrium constant for every temperature but the actual temperature is not part of the equilibrium constant equation.

Anish_Marripati_2F
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Re: Temperature

Postby Anish_Marripati_2F » Sun Jan 30, 2022 3:56 pm

Changes in temperature will affect the equilibrium reaction but we need to know if the reaction is exothermic or endothermic to find out where the reaction will shift.

Anish_Marripati_2F
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Re: Temperature

Postby Anish_Marripati_2F » Sun Jan 30, 2022 3:57 pm

Changes in temperature will affect the equilibrium reaction but we need to know if the reaction is exothermic or endothermic to find out where the reaction will shift.

Darren Apostol 2L
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Re: Temperature

Postby Darren Apostol 2L » Sun Jan 30, 2022 6:43 pm

Temperature isn't taken into account in calculations, but there is a specific equilibrium constant at each temperature. If the temperature changes, so does K.

Sara Dolmo 2J
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Re: Temperature

Postby Sara Dolmo 2J » Sun Jan 30, 2022 8:00 pm

temperature can affect the equilibrium constant.

Saebean Yi 3E
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Re: Temperature

Postby Saebean Yi 3E » Sun Jan 30, 2022 8:10 pm

Yes, in fact, the equilibrium constant is only changed by a change in temperature, nothing else. Depending on if the reaction is exothermic or endothermic, the constant will increase or decrease. If the reaction is exothermic (heat on the products side), increasing the temperature would decrease the value of the equilibrium constant because the reaction will then favor the reactants side. If the reaction is endothermic (heat on the reactants side), increasing the temperature would increase the equilibrium constant, favoring the products.

If you're actually asking how to find the value of the equilibrium constant utilizing the temperature, I wouldn't worry about it, I don't think we've covered that yet.

Shreya Arcot 3K
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Re: Temperature

Postby Shreya Arcot 3K » Sat Feb 05, 2022 11:21 am

K will change if the temperature changes. How it changes is dependent on whether the reaction is endothermic or exothermic.

If the reaction is endothermic, then heat is required, so it will be like a reactant in the problem: Heat + R -> P
Increasing temperature in the above reaction will drive the forward reaction and make more products.

If the reaction is exothermic, then heat is released, so it will be like a product in the problem: R -> P + Heat
Increasing temperature in the above reaction will drive the reverse reaction and make more reactants.

Alyssa H
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Re: Temperature

Postby Alyssa H » Sun Feb 13, 2022 3:55 pm

Out of all factors we discussed that could change (volume, pressure, moles, etc.), K is only affected by a change in temperature. Typically, at least for now, the temperature will be either 25C or 298K, and I believe we're only supposed to have a conceptual understanding that K will change as temperature changes.

Chelsea Tran 3H
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Re: Temperature

Postby Chelsea Tran 3H » Sun Feb 13, 2022 4:04 pm

Temperature generally plays a role in the equilibrium constant as it can change how many moles there are on each side of the reaction.

Brenda Tran 3C
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Re: Temperature

Postby Brenda Tran 3C » Sun Feb 13, 2022 4:06 pm

Temperature does play a factor in the constant equilibrium because as the temperature increases, K increases. Usually K is given to you at a specific temperature.

Eszter Kovacs 1A
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Re: Temperature

Postby Eszter Kovacs 1A » Fri Feb 18, 2022 5:09 pm

changing the temperature change the value of the equilibrium constant based on whether the change in temperature favors the forward or reverse process.

Veronica Larson- 1I
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Re: Temperature

Postby Veronica Larson- 1I » Fri Feb 18, 2022 8:51 pm

Yes, temperature does affect K. Increasing the temperature will favor the products if the reaction is endothermic, and will favor the reactants if the reaction is exothermic.

tashyavakil 2K
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Re: Temperature

Postby tashyavakil 2K » Fri Feb 18, 2022 9:56 pm

I believe the equilibrium constant may be affected by the temperature of a system.

JasmineReyes-2K
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Re: Temperature

Postby JasmineReyes-2K » Mon Feb 21, 2022 12:52 am

Hi!,
I would say yes because the temperature affects K itself which in return alters the type of process (endothermic or exothermic)

Jessica Li 1G
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Re: Temperature

Postby Jessica Li 1G » Fri Mar 04, 2022 3:02 am

Yes, temperature change affects the equilibrium constant as either reactants or products will be more favored depending on the direction the temp changes.

Kainath Kamil Dis 2K
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Re: Temperature

Postby Kainath Kamil Dis 2K » Fri Mar 04, 2022 3:26 pm

Kc is affected by Temp. Kp is affected by Temp and Concentration and Pressure

Tara Cumiskey 3K
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Re: Temperature

Postby Tara Cumiskey 3K » Mon Mar 07, 2022 12:03 am

Temperature does affect Kc.

Allen Mayo 1E
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Re: Temperature

Postby Allen Mayo 1E » Mon Mar 07, 2022 2:08 pm

Yes it does affect the K. When the temperature changes, the K constant will either start to favor products for reactants depending on if it heated or cooled.

Lindsey Walter 3E
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Re: Temperature

Postby Lindsey Walter 3E » Thu Mar 10, 2022 12:10 pm

Temperature does have an impact on K, the equilibrium constant. When you increase or decrease the temperature, K will change accordingly. Therefore, finding K is dependent on tempurature.

Aneesha_Nema_3C
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Re: Temperature

Postby Aneesha_Nema_3C » Sat Mar 12, 2022 3:10 pm

You would first have to determine whether or not the reaction os exothermic or endothermic (releases or requires heat/energy). Based on this, increasing/decreasing temp would have opposite results. Increasing the temperature will favor the products if the reaction is endothermic, and will favor the reactants if the reaction is exothermic.

Justin An 2L
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Re: Temperature

Postby Justin An 2L » Sat Mar 12, 2022 3:13 pm

in terms of the equilibrium constant, temperature will affect whether it increases/decreases depending on whether the reaction is endothermic (temp is considered a "reactant") or exothermic (temp is considered a "product)

Likhitha Yettela 1F
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Re: Temperature

Postby Likhitha Yettela 1F » Sun Mar 13, 2022 12:08 am

Temperature affect the K (in the sense that it will shift the reaction and change the K) but we will not need to know exact how it changes in that sense.

Nicolas Zarco 2K
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Re: Temperature

Postby Nicolas Zarco 2K » Sun Mar 13, 2022 1:13 am

The temperature plays an important factor in finding the equilibrium constant. Different temperatures result in different equilibrium constants which means different concentrations of products and reactants.

Jonathan Liu 2I
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Re: Temperature

Postby Jonathan Liu 2I » Sun Mar 13, 2022 1:15 am

Temperature affects the equilibrium constant depending on whether the reaction is exothermic or endothermic. Increasing the temperature of an exothermic reaction will shift the reaction to the left while an endothermic reaction will shift it to the right.

Zoe Staggs 3B
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Re: Temperature

Postby Zoe Staggs 3B » Sun Mar 13, 2022 8:51 pm

Yes, depending on whether the reaction is endothermic or exothermic, changing the temperature directly impacts K. Since an exothermic reaction releases heat, increasing the temperature causes a shift to the left, decreasing K. On the other hand, endothermic reactions absorb heat, so increasing temperature shifts the equation to the right and causes K to increase. I don't think you'll be asked to solve for a change in K though; just comparing Q and K.

Xzandalyn Kallstrom 2C
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Re: Temperature

Postby Xzandalyn Kallstrom 2C » Sun Mar 13, 2022 8:58 pm

An increase in temperature would effect Kc because a rise in temperature would shift the equilibrium towards the products, effecting the equilibrium.

505749458
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Re: Temperature

Postby 505749458 » Sun Mar 13, 2022 9:00 pm

I don't believe that we will ever directly use temperature to find K, but it is important to know that an increase in T will shift K to the right in exothermic reactions and an increase in T will shift K to the left in endothermic reactions.

Harshitha_Pandian_3F
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Re: Temperature

Postby Harshitha_Pandian_3F » Sun Mar 13, 2022 9:00 pm

Temperature does affect the equilibrium constant depending on the reaction being endothermic and exothermic.

Jacquelyn Rivera 2I
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Re: Temperature

Postby Jacquelyn Rivera 2I » Sun Mar 13, 2022 9:01 pm

Temperature changes K, however the direction in which the reaction shifts is dependent on whether the reaction is endothermic or exothermic.

Tylina Guo 1K
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Re: Temperature

Postby Tylina Guo 1K » Sun Mar 13, 2022 9:03 pm

I’m unsure if we can use the temperature to actually calculate the constant, however we can use it to see how it shifts the reaction and thus changes the concentrations of products/reactants, changing K.

Miranda Hess 3I
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Re: Temperature

Postby Miranda Hess 3I » Sun Mar 13, 2022 9:25 pm

Yeah, it does change it but I don't think we need to be able to calculate it. I think qualitatively analyzing based on Le Chatelier's suffices.


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