
Concept explainers
The term in the first law of

Answer to Problem 1FTD
The term in the first law of thermodynamics which is involved in raising the temperature of the water in a jar by violently shaking the jar is
Explanation of Solution
The first law of thermodynamics states that the change in internal energy of a system depends on the net
The law implies that there are two ways to vary the temperature and hence the internal energy of a system. They are either by transfer of heat or by work. The transfer of heat requires a temperature difference.
In shaking the jar, there is no temperature difference involved and hence heat is not involved in the process. Shaking the jar vigorously is doing mechanical work.
Conclusion:
Thus the term in the first law of thermodynamics which is involved in raising the temperature of the water in a jar by violently shaking the jar is
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Chapter 18 Solutions
Essential University Physics (3rd Edition)
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