Q.

The work done on a gaseous system is 12 J and also 20 J of heat is added to it. The change in internal energy of the gaseous system is

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a

8 J

b

32 J

c

12 J

d

20 J

answer is B.

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Detailed Solution

ΔU=q+w=20J+12J=32J
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The work done on a gaseous system is 12 J and also 20 J of heat is added to it. The change in internal energy of the gaseous system is