Question

Hydrogen and chlorine react to form hydrogen chloride, like this:

Answer 1

Answer: The value of the equilibrium constant for this reaction is 2.7

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_c$  

For the given chemical reaction:

$H_2(g)+Cl_2(g)\rightarrow 2HCl(g)$

The expression for $K_c$ is written as:

$K_c=\frac{[HCl]^2}{[H_2]^1[I_2]^1}$

$K_c=\frac{(1.6)^2}{(0.78)^1\times (1.2)^1}$

$K_c=2.7$

Thus the value of the equilibrium constant for this reaction is 2.7