Partial and Total Pressures


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Amy Kalteis 2F
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Partial and Total Pressures

Postby Amy Kalteis 2F » Mon Jan 17, 2022 5:45 pm

When calculating the total pressure of a reaction at equilibrium, do we just add all of the partial pressure values together? Does initial partial pressure of the gas have any impact on total pressure at equilibrium?

Rhea Desai 1A
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Re: Partial and Total Pressures

Postby Rhea Desai 1A » Mon Jan 17, 2022 5:50 pm

Yep total pressure at equilibrium is all the partial pressures at equilibrium added up together. The initial partial pressure is not included when finding total pressure at equilibrium, but all the equilibrium partial pressures are included.

Mia Yamada 1J
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Re: Partial and Total Pressures

Postby Mia Yamada 1J » Mon Jan 17, 2022 6:13 pm

You can use the initial partial pressures to find the equilibrium partial pressures if you know what the change in partial pressures is as the system goes to equilibrium. This can be shown through creating an ICE table.

Amanda Tran 1D
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Re: Partial and Total Pressures

Postby Amanda Tran 1D » Mon Jan 17, 2022 6:47 pm

To get total pressure, you add the partial pressures at equilibrium (on an ICE chart, think of this as adding up all the partial pressures in the "E" row).

Daniel Li 3C
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Re: Partial and Total Pressures

Postby Daniel Li 3C » Tue Jan 18, 2022 11:50 am

Through the usage of an ice table, you use the initial partial pressures to calculate the equilibrium pressures. Then, use the equilibrium partial pressures to find the total pressure.

Benjamin Nguyen 1J
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Re: Partial and Total Pressures

Postby Benjamin Nguyen 1J » Tue Jan 18, 2022 1:44 pm

Yes, total pressure is all the partial pressures added up. The total pressure at equilibrium would be all the partial pressures at equilibrium added up.

Aashna Bhandari 1L
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Re: Partial and Total Pressures

Postby Aashna Bhandari 1L » Tue Jan 18, 2022 3:19 pm

The total pressure is equal to the sum of all the partial pressures, and accordingly the total pressure at equilibrium is equal to the sum of all the partial pressures at equilibrium.

Emily Nguyen 3L
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Re: Partial and Total Pressures

Postby Emily Nguyen 3L » Tue Jan 18, 2022 6:57 pm

I remember misinterpreting total pressure as the total pressure for one reactant or product at the end of a reaction, but yes the total pressure is the sum of all the individual pressures of products together. The initial pressures can be used to find the equilibrium pressures for each substance involved in the reaction using an ICE box.

Prithvi Raj 3E
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Re: Partial and Total Pressures

Postby Prithvi Raj 3E » Wed Jan 19, 2022 12:07 pm

To find the total pressure, you would add all the partial pressures at equilibrium.

claire smith
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Re: Partial and Total Pressures

Postby claire smith » Wed Jan 19, 2022 12:08 pm

Similarly to calculating K, initial pressure is not taken into account for the total pressure of a system - just the equilibrium pressures. You add together all the gas pressures to find this value.

Kimberly_martinez2I
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Re: Partial and Total Pressures

Postby Kimberly_martinez2I » Wed Jan 19, 2022 1:18 pm

Yes, when trying to find the total pressure (at equilibrium) you take the sum of all the partial pressures (at equilibrium). To find the partial pressures at equilibrium you use the initial partial pressures and your ICE chart.

105605391
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Re: Partial and Total Pressures

Postby 105605391 » Wed Jan 19, 2022 1:54 pm

To find the total final pressure at equilibrium, you first find all of the partial pressures given at equilibrium then add these values together for a total.

Grant_2A
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Re: Partial and Total Pressures

Postby Grant_2A » Wed Jan 19, 2022 2:15 pm

The total pressure at equilibrium is all the partial pressures at equilibrium added up together. Hope this helps !

Emily Quill 2H
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Re: Partial and Total Pressures

Postby Emily Quill 2H » Sun Jan 23, 2022 6:43 pm

Yes, the total pressure is the sum of all the partial pressures at equilibrium.

Shreya Arcot 3K
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Re: Partial and Total Pressures

Postby Shreya Arcot 3K » Fri Jan 28, 2022 8:06 pm

The total pressure is all the partial pressures, at equilibrium, added together.

Sophia Manos 1F
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Re: Partial and Total Pressures

Postby Sophia Manos 1F » Sun Jan 30, 2022 8:07 pm

Hi! You get the total pressure at equilibrium when you add together all of the partial pressures at equilibrium. Hope this helps!

Mia Orr 3B
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Re: Partial and Total Pressures

Postby Mia Orr 3B » Sun Jan 30, 2022 9:58 pm

To calculate the total pressure at equilibrium, you would use the inital partial pressures to find the partial pressures at equilibrium by using an ICE box. Then, add together the partial pressures at equilibrium to get the total pressure at equilibrium. Hope this helps!

Cynthia_L_2C
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Re: Partial and Total Pressures

Postby Cynthia_L_2C » Mon Jan 31, 2022 12:15 am

In order to find the total pressure, you must add up all the partial pressures at equilibrium.

Guadalupe_3B
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Re: Partial and Total Pressures

Postby Guadalupe_3B » Mon Jan 31, 2022 3:35 pm

Adding all the partial pressures at equilibrium will get you the total pressure of a reaction.

Holly Do 2J
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Re: Partial and Total Pressures

Postby Holly Do 2J » Fri Feb 04, 2022 6:26 pm

I believe that the total pressure will just be the total/sum of all the partial pressures.

emmakvarnell
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Re: Partial and Total Pressures

Postby emmakvarnell » Fri Feb 04, 2022 6:43 pm

Yes, the total pressure is a sum of all the partial pressures of the gases involved in the reaction. The initial pressures do have an effect of the final pressure, which can be found using ICE tables and the equilibrium constant.

Kimberly_martinez2I
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Re: Partial and Total Pressures

Postby Kimberly_martinez2I » Thu Feb 10, 2022 1:10 am

The initial partial pressures are used to find the partial pressures at equilibrium. Then the amounts at equilibrium are used to find the total pressure by adding them up.

Anthony_Rio_3K
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Re: Partial and Total Pressures

Postby Anthony_Rio_3K » Thu Feb 10, 2022 2:04 am

In an isolated system do partial pressures and total pressure remain constant?

Jessica Li 1G
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Re: Partial and Total Pressures

Postby Jessica Li 1G » Fri Mar 04, 2022 2:45 am

Yes, you would need to take the sum of the partial pressures at equilibrium to calculate the total pressure.

Palig Kechichian 3F
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Re: Partial and Total Pressures

Postby Palig Kechichian 3F » Sun Mar 13, 2022 4:11 pm

The total pressure at equilibrium would be the sum of all the partial pressures

Miranda Hess 3I
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Re: Partial and Total Pressures

Postby Miranda Hess 3I » Sun Mar 13, 2022 9:21 pm

Yep, you would just add up partial pressures to get total pressure.

taline krumian 1L
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Re: Partial and Total Pressures

Postby taline krumian 1L » Mon Mar 14, 2022 12:12 am

The total pressure at equilibrium is the sum of all the partial pressures at equilibrium.


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