Among the following, the state function(s) is (are)
Among the following, the state function(s) is (are)
internal energy
irreversible expansion work
reversible expansion work
molar enthalpy
Solution
State function are internal energy and molar enthalpy. Work is a path dependent function, however in reversible process the path is fixed i.e. between a given initial and final state there is just on reversible path and one work. Hence, reversible work is also a state function.