Chapter 2, Problem 2E.1P

Interpretation Introduction

Interpretation: The value of final temperature, work done and change in internal energy for $1.00\text{mol}$ of ${\text{NH}}_{\text{3}}$ in reversible adiabatic expansion has to be calculated.

Concept introduction: The process in which heat or mass of the material does not exchange between the system and the surrounding is known as adiabatic process.

The final temperature of a reversible adiabatic expansion of any gas is calculated by the expression,

    $T_{\text{f}}=T_{\text{i}}{\left(\frac{V_{\text{i}}}{V_{\text{f}}}\right)}^{1/c}$

The work done in a reversible adiabatic expansion is given by the expression,

    $w_{\text{ad}}=n{C}_{V,\text{m}}\Delta T$