Physics
Grade-9
Easy
Question
In order to maintain the temperature of an isothermal system constant, ____.
- Some amount of heat may be absorbed or given out
- The number of molecules can be reduced or increased
- The internal energy can be increased always
- None of the above
Hint:
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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