Physics
Physics
11th Edition
ISBN: 9781119326342
Author: CUTNELL
Publisher: WILEY
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Chapter 15, Problem 1FC
To determine

What positive value of Q and positive value of W represents in the first law of thermodynamics.

Expert Solution & Answer
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Answer to Problem 1FC

Positive value of Q represents the (c) system gains heat and positive value of W represents the work is done by the system.

Explanation of Solution

The expression of the first law of thermodynamics is,

ΔU=UfUi=QW

Whenever the system gains the heat, the value of Q is positive. Similarly, the value of Q is negative whenever the system loses the heat.

If the work is done by the system, the value of W is positive. Similarly, the value of W is negative when the work is done on the system.

Conclusion:

Hence, the positive value of Q represents the (c) system gains heat and positive value of W represents the work is done by the system.

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Chapter 15 Solutions

Physics

Ch. 15.11 - Prob. 16CYUCh. 15.11 - Prob. 17CYUCh. 15.11 - Prob. 18CYUCh. 15.11 - Prob. 19CYUCh. 15.11 - Prob. 20CYUCh. 15.12 - Prob. 21CYUCh. 15.12 - Prob. 22CYUCh. 15.12 - Prob. 23CYUCh. 15.12 - Prob. 24CYUCh. 15.12 - Prob. 25CYUCh. 15 - Prob. 1FCCh. 15 - Prob. 4FCCh. 15 - Prob. 6FCCh. 15 - Prob. 8FCCh. 15 - Prob. 10FCCh. 15 - Prob. 13FCCh. 15 - Prob. 15FCCh. 15 - Prob. 17FCCh. 15 - Prob. 19FCCh. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10PCh. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 24PCh. 15 - 25. A monatomic ideal gas has an initial...Ch. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - Prob. 41PCh. 15 - Prob. 42PCh. 15 - 44. Multiple-Concept Example 6 provides a review...Ch. 15 - Prob. 45PCh. 15 - Prob. 46PCh. 15 - Prob. 47PCh. 15 - Prob. 48PCh. 15 - Prob. 49PCh. 15 - Prob. 50PCh. 15 - Prob. 51PCh. 15 - Prob. 52PCh. 15 - Prob. 53PCh. 15 - Prob. 55PCh. 15 - Prob. 56PCh. 15 - Prob. 57PCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - Prob. 60PCh. 15 - Prob. 63PCh. 15 - Prob. 64PCh. 15 - Prob. 65PCh. 15 - Prob. 66PCh. 15 - Prob. 67PCh. 15 - Prob. 68PCh. 15 - Prob. 69PCh. 15 - Prob. 70PCh. 15 - Prob. 73PCh. 15 - 75. Consider three engines that each use 1650 J of...Ch. 15 - Prob. 76PCh. 15 - Prob. 77PCh. 15 - Prob. 78PCh. 15 - Prob. 79PCh. 15 - Prob. 80PCh. 15 - Prob. 81PCh. 15 - Prob. 82APCh. 15 - Prob. 83APCh. 15 - Prob. 84APCh. 15 - Prob. 85APCh. 15 - Prob. 86APCh. 15 - Prob. 87APCh. 15 - Prob. 88APCh. 15 - Prob. 89APCh. 15 - Prob. 90APCh. 15 - Prob. 91APCh. 15 - Prob. 92APCh. 15 - Prob. 99APCh. 15 - Prob. 101APCh. 15 - Prob. 104TPCh. 15 - Prob. 105TP
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