Chapter 18, Problem 18.140MP

Interpretation Introduction

Interpretation:

The value of $K_{\text{b}}$ and $\text{pH}$ is to be calculated.

Concept introduction:

The formula that determines spontaneity of the reaction is,

$\Delta G°=\Delta H°-T\Delta S°$

Where,

• $\Delta G°$ denotes standard free energy change.
• $T$ denotes temperature.
• $\Delta S°$ denotes entropy change of reaction.
• $\Delta H°$ denotes enthalpy change of reaction.

The expression to evaluate equilibrium constant is as follows:

$K_{\text{p}}=e^{-\left(\frac{\Delta G°}{RT}\right)}$