Write an expression for $K_c$ for the reaction $\mathrm{PCl}_5(g) \rightleftharpoons \mathrm{PCl}_3(g)+C l_2(g)$.

Question

Write an expression for $K_c$ for the reaction $\mathrm{PCl}_5(g) \rightleftharpoons \mathrm{PCl}_3(g)+C l_2(g)$., $K_c=\frac{\left[\mathrm{PCl}_3\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_5\right]}$, $K_c=\frac{\left[\mathrm{PCl}_5\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_3\right]}$, $K_c=\frac{\left[\mathrm{PCl}_3\right]}{\left[P C l_5\right] \cdot\left[C l_2\right]}$, $K_c=\frac{\left[\mathrm{PCl}_5\right] \cdot\left[\mathrm{PCl}_3\right]}{\left.\mid C l_2\right]}$

MARKS App · Accepted Answer

Correct Option is : (A) $K_c=\frac{\left[\mathrm{PCl}_3\right] \cdot\left[\mathrm{Cl}_2\right]}{\left[\mathrm{PCl}_5\right]}$

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