Which statement about a thermodynamic process is wrong

1. A.
   Energy exchanged is used to do work.
2. B.
   Perfect thermal equilibrium with environment
3. C.
   Equation of state pV is not constant.
4. D.
   No change in internal energy.

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1. A.
   Equation of state is $PV^\gamma=$ constant.
2. B.
   There is exchange of heat with surrounding.
3. C.
   All the work is utilized to change the internal energy of the system.
4. D.
   Temperature of the system changes i.e. $\Delta T\neq0$

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1. A.
   In an isothermal process, the temperature remains constant.
2. B.
   In an adiabatic process, the system is insulated from surroundings.
3. C.
   In an isochoric process, pressure remains constant.
4. D.
   In an adiabatic process, ${PV}^{\gamma} =$ constant.

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