Chapter 5.2, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the system after it undergoes the process of heat absorption is to be identified.

Concept introduction:

Internal energy is a state function thatis the sum of work done on or by the system and the heat released or absorbed by it. It is given by:

$\Delta U=q+w$

$\Delta U$ is the change in the system’s internal energy, $q$ is heat (released or absorbed by the system, and $w$ is work (done on the system or by the system).

If work is done on the system, $w$ is positive, and when work is done by the system, $w$ is negative.

If heat is absorbed by the system, $q$ is positive, and when heat is released, $q$ is negative.

Work done is given by:

$w=P\Delta V$

Here, $P$ is the external, opposing pressureand $\Delta V=\left(V_2-V_1\right)$ is the change in volume.