The magnitudes of enthalpy changes for irreversible adiabatic expansion of a gas from 1L to 2L is `∆H_(1)` and for reversible adiabatic expansion for the same expansion is `∆H_(2)`. Then

Options

A. `∆H_(1) gt ∆H_(2)`
B. `∆H_(1) < ∆H_(2)`
C. `∆H_(1)= ∆H_(2)` enthalpy being a state function
D. `∆H_(1)= ∆E_(1) "&" ∆H_(2)= ∆E_(2) " where" ∆E_(1) "&" ∆E_(2)` are magnitude of change in internal energy of gas in these expansions respectively.

Answer

B