Question

A sample of 1.0 mole of a monoatomic ideal gas is taken through a cyclic process of expansion and compression as shown in the figure. What will be the value of $\Delta H$ for the cycle as a whole ?

• A. $0$
• B. $1\times RT$
• C. $2\times RT$
• D. None of these.

Answer 1

The correct option is A $0$

The net change in enthalpy in a cyclic process is zero, i.e $\Delta H_{cycle}=0$ because it is a state function. In a cyclic process as initial and final states are same so $\Delta H_{cycle}=0$.