Thermodynamics - Result Question 44
46. Which of the following processes is reversible?
(a) Transfer of heat by conduction
[2005]
(b) Transfer of heat by radiation
(c) Isothermal compression
(d) Electrical heating of a nichrome wire
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Answer:
Correct Answer: 46. (c)
Solution:
- (c) Isothermal process occur very slowly so it is quasi-static and hence it is reversible.
The conditions for reversibility
- Must take place infinitely slowly
- The temperature of the system must not differ appreciably
- There must be complete absence of dissipative forces such as friction, viscosity, electric resistance, etc.
