Concept explainers
The direction in which the energy travels.
Answer to Problem 19.1QQ
Explanation of Solution
The situation in which there is no exchange of energy between the two objects in thermal equilibrium by heat or
The property that describes the energy transfer between two objects when they are in thermalcontact is the temperature of the objects. Two objects are not said to be in thermal equilibrium if they have different temperature and there will be a transfer of energy between them if they are placed in thermal contact.
Conclusion:
Since, it is only the temperature (not size, mass, density etc) that determines whether the energy will transfer from one object to other or not. Thus, option (c) is correct.
The energy transfer of the object depends on the temperature difference between two objects not on the size of the objects. Thus, option (a) is incorrect.
The energy transfer of the object depends on the temperature difference between two objects not on the mass of the objects. Thus, option (b) is incorrect.
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Chapter 19 Solutions
Physics for Scientists and Engineers, Volume 1
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