Question

Which one of the following is correct option?

• A. The van't Hoff relates the change in equilibrium constant $\left(K_{eqb}\right)$ of a chemical reaction to the change in temperature (T) and enthalpy change $\left(\Delta H\right)$.
• B. The van't Hoff relates the change in equilibrium constant $\left(K_{eqb}\right)$ of a chemical reaction to the change in pressure (P) and enthalpy change $\left(\Delta H\right)$.
• C. The van't Hoff relates the change in equilibrium constant $\left(K_{eqb}\right)$ of a chemical reaction to the change in pressure (P) and Gibb's free energy $\left(\Delta G\right)$.
• D. None of the above

Answer 1

The correct option is A The van't Hoff relates the change in equilibrium constant $\left(K_{eqb}\right)$ of a chemical reaction to the change in temperature (T) and enthalpy change $\left(\Delta H\right)$.

The van't Hoff equation is given by $log\frac{K_{p_2}}{K_{p_1}}=\frac{△H}{2.303R}\left[\frac{T_2-T_1}{T_1{T}_2}\right]$
from equation, it clear that it relates the change in equilibrium constant $\left(K_{eqb}\right)$ of a chemical reaction to the change in temperature (T) and enthalpy change $\left(\Delta H\right)$.