Physics
Grade-9
Easy

Question

When the heat is removed from a system, its internal energy _____.

  1. Increases
  2. Decreases
  3. Remains the same
  4. None 

hintHint:

T∝U , if the internal energy doubles the temperature doubles.

The correct answer is: Decreases


    When heat Or Energy, once released as heat, results in a decrease in the overall internal energy of the object. Since kinetic energy is one of the forms of internal energy, the release of heat from an object causes a decrease in the average kinetic energy of its particles.

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