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Questions  

The internal energy of a system changes when it undergoes

a
a cyclic process
b
an isothermal process
c
an adiabatic process
d
any process in which the heat given out by the system is equal to the work done on the system

detailed solution

Correct option is C

Out of the given options only in case of adiabatic process, internal energy changes.For all other the final internal energy is same as initial.

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