Assertion : For reaction N_{2(g)} + 3H_{2(g)} | vedclass

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(A) For the reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$,the equilibrium constant expression is $K_C = \frac{[NH_3]^2}{[N_2][H_2]^3}$

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) For the reaction $N_{2(g)} + 3H_{2(g)} ightleftharpoons 2NH_{3(g)}$,the equilibrium constant expression is $K_C = \frac{[NH_3]^2}{[N_2][H_2]^3}$.The units for concentration are $mol \, L^{-1}$.Substituting these units into the expression: $K_C = \frac{(mol \, L^{-1})^2}{(mol \, L^{-1}) 	imes (mol \, L^{-1})^3} = \frac{mol^2 \, L^{-2}}{mol^4 \, L^{-4}} = mol^{-2} \, L^2$.Thus,the unit of $K_C$ is $L^2 \, mol^{-2}$.Both the Assertion and Reason are correct,and the Reason provides the correct explanation for the Assertion.

Assertion : For reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$,the unit of $K_C$ is $L^2 \, mol^{-2}$.
Reason : For the reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$,the equilibrium constant $K_C = \frac{[NH_3]^2}{[N_2][H_2]^3}$.

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Assertion : For reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$,the unit of $K_C$ is $L^2 \, mol^{-2}$.Reason : For the reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$,the equilibrium constant $K_C = \frac{[NH_3]^2}{[N_2][H_2]^3}$.