Question

In which of the following reactions, the concentration of the product is higher than the concentration of a reactant at equilibrium?

[K $=$ equilibrium constant]

• A. $A\rightleftharpoons B;K=0.001$
• B. $M\rightleftharpoons N;K=10$
• C. $X\rightleftharpoons Y;K=0.005$
• D. $R\rightleftharpoons P;K=0.01$

Answer 1

The correct option is B $M\rightleftharpoons N;K=10$

For a reaction, $K_c=\frac{\left[Product\right]}{\left[Reactant\right]}$

Hence, if $K_c>1$, then [Product] > [Reactant].

The value of $K$ of the reaction, $M\rightleftharpoons N$ is $10$.

Therefore, option B is correct.