Chapter 5, Problem 26QP

Interpretation Introduction

Interpretation:

The energy change for the expansion of the gas under given condition is to be calculated.

Concept Introduction:

The sign of heat is positive, if heat is absorbed by the system, and negative if heat is released by the system.

The sign of work done is negative, if work is done by the system, and positive if work is done on the system.

The energy change of the system is calculated by the formula,

$\Delta U=q+w$

Here, $\Delta U$ is the energy change, $q$ is the heat change and $w$ is the work done of the system.