`2Ato A_2`
`T = 400K`
`K_(eq) = x xx 10^(-4)`
`DeltaG^@` = 25.2KJ/mol
`R = 8.3` J/k-mol
Determine `x`?

For the equilibrium, PCI_(5)(g) hArr PCI_(3)(g) +CI_(2)(g) at 25^(@)C K_(c) =1.8 xx 10^(-7) Calculate DeltaG^(Theta) for the reaction (R = 8.314 J K^(-1) mol^(-1)) .

For a demerization reaction , 2A (g) to A_2 (g) at 298 K, Delta U(Theta) = - 20 kJ"mol"^(-1), Delta S^(Theta) = - 30 JK^(-1) "mol"^(-1) , then the Delta G^(Theta) will be _________J.

4.0 mol of an idela gas initially at 1.5atm and 300K is heated to 600K where the pressure is 4.5atm . Also, C_(vm) = a+bT, a = 25 J K^(-1)mol^(-1), b = 0.03 J K^(-2) mol^(-1) . Determine DeltaU, DeltaH .

For a reaction DeltaG^@ = -51.4 KJ/mol and Delta H^@ = 49.4 KJ/mol at 300K, then value of DeltaS^@ in J/K is