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the value of equilibrium constant

Posted: Mon Jan 14, 2019 7:02 pm
by 505166714
Is the value of the reaction quotient the same for gas when calculating it by gas concentration and when calculating it by partial pressure?

Re: the value of equilibrium constant

Posted: Mon Jan 14, 2019 7:28 pm
by Elisa Bass 4L
No. Therefore, if it tells you to calculate the reaction quotient, Q, and compare it to a given K for example, make sure you use partial pressure or concentration depending on if you’re given Kp or Kc.

Re: the value of equilibrium constant

Posted: Mon Jan 14, 2019 8:05 pm
by Sarah Kiamanesh 1D
It's crucial you pay attention to whether the problem specifies molecular quantities in molar concentration or partial pressures, because the constant's value is dependent on this. To convert between these two constants, use the formula:
K = (RT)^(delta nr)(Kc)

Re: the value of equilibrium constant

Posted: Mon Jan 14, 2019 9:56 pm
by Sara Flynn 2C
No, the values are different because there are two different units or properties of the gases being measured in each case and so they will give different values. There is a formula to convert between the two though