Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 15, Problem 8P

(a)

To determine

The work done by the gas.

(a)

Expert Solution
Check Mark

Answer to Problem 8P

The work done by the gas is 78.8J .

Explanation of Solution

Given info:

The pressure of the gas is, P=3atm=3atm×1.01×105N/m21atm=3.03×105N/m2 .

The initial volume of the gas is, V1=400mL=400mL×106m31mL=4×104m3 .

The final volume of the gas is, V2=660mL=660mL×106m31mL=6.6×104m3 .

Formula Used:

The expression to calculate the work done by the gas is,

  W=P(V2V1)

Calculation:

Substitute all the values in the above expression.

  W=(3.03×105N/m2)(6.6×104m34×104m3)=78.8J

Conclusion:

Thus, the work done by the gas is 78.8J .

(b)

To determine

The heat flow into the gas.

(b)

Expert Solution
Check Mark

Answer to Problem 8P

The heat flow into the gas is 78.8J .

Explanation of Solution

Given info:

The change in the internal energy of the gas is, ΔU=0J .

Formula Used:

The expression to calculate the heat flow into the gas is,

  Q=ΔU+W

Calculation:

Substitute all the values in the above expression.

  Q=0J+78.8J=78.8J

Conclusion:

Thus, the heat flow into the gas is 78.8J .

Chapter 15 Solutions

Physics: Principles with Applications

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