   # A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm to a volume of 75.0 L. Calculate the work in units of kJ for the gas expansion. ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

#### Solutions

Chapter
Section ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 7, Problem 35E
Textbook Problem
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## A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm to a volume of 75.0 L. Calculate the work in units of kJ for the gas expansion.

Interpretation Introduction

Interpretation: The work of an ideal gas should be calculated.

Concept Introduction:

The work is considered as a pressure and volume for the gases expansion and compressions in thermodynamic process.

Formula:

w=-P×ΔV......(1)

w is work

P is a constant external pressure

ΔV is a volume change

### Explanation of Solution

Explanation

Volume change =65L

External pressure   P=2.00atm

The given volume change and pressure are recorded as shown above.

To calculate the work of an ideal gas.

w=-2.00×65

=-130atm×L

Joules =-130atm×L

=-130×101

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