Chapter 4, Problem 4A.2ST

Interpretation Introduction

Interpretation:

Effect on the difference of molar Gibbs energies of increasing the pressure from $\text{1}\text{bar}\text{to}\text{2}\text{bar}$ in water vapor and liquid are in equilibrium has to be calculated. Also the change that becomes spontaneous has to be given.

Concept introduction:

Gibb’s energy is an important factor which greatly affect the thermodynamic stability of a molecule or compound.

Change in Gibbs energy with temperature:

  $\begin{array}{l}\text{ΔG}\text{=}\text{n}\text{RT}\text{ln}\frac{{\text{P}}_{\text{2}}}{{\text{P}}_{\text{1}}}\\ \text{n-No}\text{.of}\text{moles}\\ \text{R}\text{-}\text{Universal}\text{gas}\text{constant}\\ \text{T-Temperature}\\ {\text{P}}_{\text{2}}\text{-}\text{Final}\text{pressure}\\ {\text{P}}_{\text{1}}\text{-}\text{Initial}\text{pressure}\end{array}$