Physics
Grade-9
Easy

Question

In order to maintain the temperature of an isothermal system constant, ____.

  1. Some amount of heat may be absorbed or given out
  2. The number of molecules can be reduced or increased
  3. The internal energy can be increased always
  4. None of the above 

hintHint:

Correct answer is option 1

The correct answer is: Some amount of heat may be absorbed or given out


    Some amount of heat may be absorbed or given out in order to maintain the temperature of an isothermal system.

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