# chemistry

For reactions in solution, molar concentrations are usually used in equilibrium constant
expressions (designated by K or Kc). In gases, partial pressures can also be used (designated
by Kp). Equilibrium partial pressures of NOCl, NO and Cl2 in a container at 300 K are 1.2
atm, 0.050 atm and 0.30 atm, respectively. Calculate a value for the equilibrium constant Kp
for the following reaction.
2 2NO (g) + Cl (g)  2NOCl (g)

1. I found K =1920
my question is whether the temperature is being used at all and if it is why?

posted by alex
2. My calculator is broken so I can't check your calculation; however, no the temperature is not being used EXCEPT that the value for Kp calculated is at 300 K and no other temperature. Kp and Kc change with T.

posted by DrBob222

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