Chapter 7, Problem 7.16P

Interpretation Introduction

(a)

Interpretation:

The validation for the given statement that for an ideal gas, $\stackrel{\wedge }{U}$ and $\stackrel{\wedge }{H}$ are related as $\stackrel{\wedge }{H}=\stackrel{\wedge }{U}+RT$, where $R$ is the gas constant is to be proved. The given claim that $\stackrel{\wedge }{\Delta H}$ for a process in which an ideal gas goes from $\left(T_1,P_1\right)$ to $\left(T_2,P_2\right)$ equals to $\stackrel{\wedge }{\Delta H}$ for the same gas going from $T_1$ to $T_2$ at a constant pressure of $P_1$ is to be justified.

Concept introduction:

The gas which obeys all the three gas laws, that is, Boyle’s law, Charles’ law and Avogadro’s law over an entire range of temperature is known as ideal gas. The ideal gas equation is given as $PV=nRT$.

Interpretation Introduction

(b)

Interpretation:

The change in enthalpy $\left(\Delta H\right)$ for a given process is to be calculated.

Concept introduction:

The gas which obeys all the three gas laws, that is, Boyle’s law, Charles’ law and Avogadro’s law over an entire range of temperature is known as ideal gas. The ideal gas equation is given as $PV=nRT$.