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Thermodynamics — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
MCQ
The thermal motion means :
  • A
    Motion due to heat engine
  • B
    Disorderly motion of the body as a whole
  • C
    Motion of the body that generates heat
  • ✓
    Random motion of molecules
✓

Answer

Correct option: D.
Random motion of molecules
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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