Temperature and K

[705340227]

Can someone review the correlation between temperature and K? Thanks!

[Sana Nagori 2H]

K as in Kelvin?

[Shruti Kulkarni 2I]

Temperature can be measured in Kelvin if that is the K you are talking about. If you are talking about the equilibrium constant, k then changes in temperature will change the equilibrium constant for the reaction. If the reaction is endothermic, adding heat will shift the direction towards the products, increasing the k constant. If the reaction is exothermic, then k will decrease as the reaction will shift towards the reactants.

[Rob Tsai 2F]

If you are talking about degrees Kelvin, then K is simply another unit measure of temperature, specifically the SI unit for temperature. But if you're talking about the equilibrium constant Kc, then a change in temperature is the only change to the system that can affect Kc. Hope this helps!

[Faaizah Arshad 1H]

For an endothermic reaction, adding heat will shift the reaction to the right, causing more products to be formed, so K will increase. For an exothermic reaction, adding heat will shift the reaction to the left, so more reactants will be formed, and K will decrease.

[Jordan Tatang 3L]

K is the temperature in Kelvin, but like the others said temperature can change K it just depends on whether the reaction is endothermic or exothermic.

[Lillian]

K (Kelvin) is a measure of temperature, just like Celsius or Fahrenheit. We most commonly use Celsius and Kelvin, as the only difference between the two is that Kelvin = Celsius + 273.

[Alisa Nagashima 1B]

The K constant can only be changed with a change in temperature. If you increase the temperature of an endothermic reaction, K will increase. If you increase the temperature of an exothermic reaction, K will decrease.

[Abraham De Luna]

K is just a unit for temperature.

[Sam Wentzel 1F 14B]

Temp = degrees K or degrees C. Relationship is 1 to 1

[Jaden Kwon 3C]

If the K you are referring to is Kelvin, the temperature in Kelvin is just the temperature in Celsius plus 273.15. This is to have 0 degrees Kelvin be absolute zero while 0 degrees Celsius is the freezing point of water.

[Caelin Brenninkmeijer 1G]

K is a unit of temperature, if you're referring to K as in Kelvin.

[Gian Boco 2G]

Temperature affects K differently based on if the reaction is endothermic or exothermic.

[Danielle DIS2L]

K would be a unit of temperature and when you are referring to the temperature of the reaction, it is usually give to you as celsius but you add that number to 273K in order to get the temperature of the reaction

[Taha 2D]

K is a unit of temperature known as kelvin. K in equilibria is effected by temp as in an endothermic reaction increasing the heat will favor the product and the other way around for exothermic

[eve444]

K (kelvin) is a unit of temperature. Similar to F (Fahrenheit) and C (Celsius). Since most problems use and give Celsius, the conversion factor from celsius to Kelvin is 273 + C.

[Isamar Aburto Paniagua 2K]

Changes in temperature will change the equilibrium constant (K) in reactions. Endothermic reactions that add heat increase K whereas Exothermic reactions that release heat decrease K.

[Jacquelyn Rivera 2I]

I'm assuming you mean K as in Kelvins, which is a unit of temperature. When you're working with a formula that requires temperature to be used, it will often need you to use the temperature in terms of Kelvins.

[Tylina Guo 1K]

K as in the rate constant will change with temperature. If the temp increases, the reaction will shift towards the side with less heat (endo vs exo) and thus the concentrations of each reactant/product will change.

[Jeff Balian 2D]

The book repeatedly brings up reactions at 298.15 Kelvin or 25 Celcius. Is there any significance to this exact temperature?

[Shania Hao 3L]

The book repeatedly brings up reactions at 298.15 Kelvin or 25 Celcius. Is there any significance to this exact temperature?

25 C, which is equivalent to 298.15 K, is the agreed upon standard used as a measurement at room temperature. This uniformity in the standard temperature allows for the universal understanding that we are at room temperature and that the problem at hand is not being affected by temperature if at 25 C.

[CharlotteHilsabe 1B]

Kelvin (K) is a unit for temperature. To convert from Celsius to Kelvin, add 273 to the degrees in Celsius. You should always convert to Kelvin before using the Ideal Gas Law (pV=nRT).