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# When a system is taken from state a to state b in Fig. ISBN: 9780321675460 31

## Solution for problem 41P Chapter 19

University Physics | 13th Edition

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Problem 41P

When a system is taken from state a to state b in ?Fig. P19.37 along path ?acb?, 90.0 J of heat flows into the sys-tem and 60.0 J of work is done by the system. (a) How much heat flows into the system along path ?adb if the work done by the system is 15.0 J? (b) When the system is returned from b to a along the curved path, the absolute value of the work done by the system is 35.0 J. Does the system absorb or liberate heat? How much heat? (c) If Ua = 0 and Ud = 8.0 J, find the heat absorbed in the processes ?ad? and ?db?.

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Solution 41P This question is based on the first law of thermodynamics, which is expressed mathematically as Q = U + W , where Q is the amount of heat added to a system, U is the change in internal energy of the system and W is the work done by the system. Given that, along path acb, Q = 90.0 J W = 60.0 J Therefore, along the path acb, the change in internal energy is U) acb= Q W = 90.0 60.0 J = 30.0 J (a) Along the path adb also, the change in internal energy is also 30.0 J. Given, W) adb= 15.0 J Therefore, the heat flow along the path adb is Q) adb= W) adb + U) adb= 15.0 J + 30.0 J = 45.0 J (b) When the system returns from b to a, there is a decrease in volume of the system, therefore W) ba = 35.0 J . The change in internal...

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##### ISBN: 9780321675460

The full step-by-step solution to problem: 41P from chapter: 19 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This full solution covers the following key subjects: system, heat, path, along, done. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 41P from 19 chapter was answered, more than 345 students have viewed the full step-by-step answer. The answer to “When a system is taken from state a to state b in ?Fig. P19.37 along path ?acb?, 90.0 J of heat flows into the sys-tem and 60.0 J of work is done by the system. (a) How much heat flows into the system along path ?adb if the work done by the system is 15.0 J? (b) When the system is returned from b to a along the curved path, the absolute value of the work done by the system is 35.0 J. Does the system absorb or liberate heat? How much heat? (c) If Ua = 0 and Ud = 8.0 J, find the heat absorbed in the processes ?ad? and ?db?.” is broken down into a number of easy to follow steps, and 113 words. University Physics was written by and is associated to the ISBN: 9780321675460.

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