Chapter 4, Problem 4C.2E

Interpretation Introduction

Interpretation:

The reason as to why the heat capacities of ethane and methane differ from the values expected for an ideal monoatomic gas has to be stated.

Concept Introduction:

Specific heat capacity that is specific to any chemical substance explains the relationship of temperature change and substance’s mass.  When this heat capacity is estimated by keeping pressure fixed, it is denoted as $C_{\text{P}}$.  Physical quantity responsible to alter the substance’s temperature is heat capacity.  The heat that is needed to carry out this temperature change is related with the substance’s mass.