MCQ
The thermal motion means:
- AMotion due to heat engine
- BDisorderly motion of the body as a whole
- CMotion of the body that generates heat
- DRandom motion of molecules
✓
Answer
- Random motion of molecules
Explanation:
Whenever a system absorbs heat from the surroundings or when we supply thermal energy to a system, the internal energy of the system increases.
The heat absorbed increases the kinetic energy of the molecules causing them to move randomly.
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