Enthalpy change for the reaction,
4H_(g)  $$ \to $$  2H_2(g) is $$-$$869.6 kJ
The dissociation energy of H $$-$$ H bond is

If the enthalpy change for the transition of liquid water to steam is 30 kJ mol^$$-$$1 at 27^oC, the entropy change for the process would be

Match List I (Equations) with List II (Type of processes) and select the correct option.

List I		List II
Equations		Type of processes
A.	Kp > Q	(i)	Non- spontaneous
B.	$$\Delta $$Go < RT ln Q	(ii)	Equilibrium
C.	Kp = Q	(iii)	Spontaneous and endothermic
D.	T > $${{\Delta H} \over {\Delta S}}$$	(iv)	Spontaneous

Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be