Physics for Scientists and Engineers
Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 19, Problem 1P
To determine

The correct option.

Expert Solution & Answer
Check Mark

Answer to Problem 1P

The correct option is (c).

Explanation of Solution

Given:

The efficiency of the automobile gasoline engine is η=0.25

Formula used:

The percentage of heat not used as work is given by,

  QrQs=(1η)×100%

Here, Qs is the heat supplied and Qr is the heat released.

Calculation:

The percentage of heat not used as work can be given as,

  QrQs=(1η)×100%=(10.25)×100%=75%

Conclusion:

Therefore, the correct option is (c).

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