what is the difference between Kp and Kc?

Asked by  | 13th Feb, 2012, 01:53: AM

Expert Answer:

Kp is used for reactions involving gases, and the equilibrium constant is expressed in terms of the partial pressures of the gases. Whereas, Kc is used as a general constant, and the concentrations (in moles/liter) are used in calculating its value.

Kc is the ratio of products’ concentration over reactants’ concentration and Kp is the ratio of products’ partial pressures and reactants’ partial pressures.

Kp = Kc X (R T)^( ?n)

Answered by  | 13th Feb, 2012, 10:08: AM

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