Which among the following is correct option for adiabatic reversible expansion of an ideal gas?
1
Entropy change for system > 0, Total entropy change = 0, ∆T=0
2
Enthalpy change = 0, Total entropy change = 0, Gibbs free energy change <0
3
Internal energy change = 0, Entropy change for surroundings > 0, ∆Q = 0
4
Entropy change for surroundings = 0, Total entropy change = 0, ∆T ≠ 0