AP EAMCET · Chemistry · Chemical Equilibrium

Which among the following denotes the correct relationship between $K_{p}$ and $K_{c}$ for the reaction $2 A_{(g)} ⇌ B_{(g)} + C_{(g)}$

A $K_{p} > K_{c}$
B $K_{c} > K_{p}$
C $K_{c} = {(K_{p})}^{2}$
D $K_{p} = K_{c}$

Verified Solution

Answer & Solution

Correct Answer

(D) $K_{p} = K_{c}$

Step-by-step Solution

Detailed explanation

So we know the relation between the equilibrium constant and equilibrium pressure constant So the formula is KP = KCRT∆ng Whereas we know that ∆ng is the difference of the gaseous number of moles of reactant side and product side ∆ng = 2-2=0…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Which among the following denotes the correct relationship between Kp and Kc for the reaction 2A(g)⇌B(g)+C(g)

Step-by-step Solution

Which among the following denotes the correct relationship between $K_{p}$ and $K_{c}$ for the reaction $2 A_{(g)} ⇌ B_{(g)} + C_{(g)}$