Question

An equilibrium mixture taken in 2 litre vessel of the reaction: \[ \mathrm{2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)} \] has 4 moles of $\mathrm{SO_2}$, 3 moles of $\mathrm{O_2}$ and 6 moles of $\mathrm{SO_3}$ then the value of equilibrium constant $(K_c)$ will be:

• A. $0.75\ \mathrm{L\ mol^{-1}}$
• B. $0.15\ \mathrm{mol\ L^{-1}}$
• C. $1.5\ \mathrm{L\ mol^{-1}}$
• D. $15\ \mathrm{mol\ L^{-1}}$

Hint:

Before applying the equilibrium constant formula, always convert moles into molar concentration by dividing by the volume of the container.

Answer 1

The Correct Option is C