Under which circumstances are kp and kc equal for the reaction aa (g) + bb (g) ⇌cc (g) + dd (g) ?

Question

Angel

Chemistry

29 March, 12:48

Under which circumstances are kp and kc equal for the reaction aa (g) + bb (g) ⇌cc (g) + dd (g) ?

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Answers (1)

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Darren Shields · Answer 1

When the no. of moles of reactant gases (a + b) = the no. of moles of product gases (c + d).

Explanation:

The relation between Kp and Kc is:

Kp = Kc (RT) ∧Δn.

So, Kp = Kc, when Δn = zero. Δn is the difference between the no. of gas molecules in the products side and that in the reactants side. So, Δn = zero, when the no. of molecules of gases in the products side = the no. of molecules of gases in the reactants side which means (a + b) = (c + d).