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Question
When we stir a liquid vigorously, it becomes warm. Is it a reversible process?
Short Note
Solution
When we stir a liquid vigorously, we do work on it due to which its temperature rises and it becomes warm. To bring back the liquid to the initial temperature, heat needs to be extracted from it. But it is an irreversible process that cannot be brought back to the initial state by stirring the liquid again in the opposite direction.
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Reversible and Irreversible Processes
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Match List I with List II
| List - I | List - II |
| (a) Isothermal | (i) Pressrue constant |
| (b) Isochoric | (ii) Temperature constant |
| (c) Adiabatic | (iii) Volume constant |
| (d) Isobaric | (iv) Heat content is constant |
Choose the correct answer from the options given below:
