Whether the mechanical energy can be transformed completely into heat energy and reverse process with example.
Answer to Problem 2Q
Solution:
- Yes, the mechanical energy can be transformed completely into heat energy or internal energy.
- Reverse process can also happen.
Explanation of Solution
When a moving object slides over a rough surface or stops, the mechanical energy of the moving object completely changes into heat energy.The example for this transformation can be seen as when we feel cold in the winters, we rub our both the palms that results the transformation of the kinetic energy of the moving palm into heat energy and we feel warmth.
The reverse process that is the transformation of heat energy into mechanical energy is also possible. This transformation can be validated by steam engine application in which the coal is burnt to produce heat further this heat energy is transformed into mechanical energy.
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