A gas is compressed from a volume of 2 m3 to a volume of 1 m3 at a constant pressure of 100 N/m2. Then it is heated at constant volume by supplying 150 J. of energy. As a result, the internal energy of the gas :
Increases by 250 J
Decreases by 250 J
Increases by 50 J
Decreases by 50 J
As we have learned
First law of Thermodynamics -
Heat imported to a body in is in general used to increase internal energy and work done against external pressure.
- wherein
U is increased by 250 J
Option 1)
Increases by 250 J
Option 2)
Decreases by 250 J
Option 3)
Increases by 50 J
Option 4)
Decreases by 50 J
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