MCQ
At a given temperature, the equilibrium constant for reaction $PC{l_5}_{(g)}$ $\rightleftharpoons$ $PC{l_3}_{(g)} + C{l_2}_{(g)}$ is $2.4 \times {10^{ - 3}}$. At the same temperature, the equilibrium constant for reaction $PC{l_3}_{(g)} + C{l_2}_{(g)}$ $\rightleftharpoons$ $PC{l_5}_{(g)}$ is
- A$2.4 \times {10^{ - 3}}$
- B$ - 2.4 \times {10^{ - 3}}$
- ✓$4.2 \times {10^2}$
- D$4.8 \times {10^{ - 2}}$
