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General
Easy
Question
The internal energy of a solid also increases when heat is transferred to it from its surroundings. A 5 kg solid bar is heated at atmospheric pressure. Its temperature increases from 20°C to 70°C. The linear expansion coefficient of solid bar is 
The density of solid bar is 
The specific heat capacity of solid bar is 
The atmospheric pressure is 
The work done by the solid bar due to thermal expansion, under atmospheric pressure is
- 500 J
- 1000 J
- 1500 J
- 2000 J
The correct answer is: 1500 J
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