For reversible reaction : `X_((g))+3Y_((g))hArr 2Z_((g)), DeltaH=-"40 kJ"` Standard entropies of X, Y and Z are 60, 40and `"50 J K"^(-1)",ol"^(-1)` respectively. The temperature at which the above reaction is in equilibrium is

For a reversible reaction : X_((g))+3Y_((g))hArr 2Z_((g)), Delta H=-40 kJ , the standard entropies of X,Y and Z are 60, 40 and 50 JK^(-1)mol^(-1) respectively. The temperature at which the above reaction attains equilibrium is about

For hypothetical reversible reaction 1//2A_(2)(g) +3//2B_(2)(g) rarr AB_(3)(g), DeltaH =- 20 kJ if standard entropies of A_(2),B_(2) , and AB_(3) are 60,40 and 50JK^(-1) mol^(-1) respectively. The above reaction will be equilibrium at

For hypothetical reversible reaction 1//2A_(2)(g) +3//2B_(2)(g) rarr AB_(3)(g), DeltaH =- 210 kJ if standard entropies of A_(2),B_(2) , and AB_(3) are 60,40 and 50JK^(-1) mol^(-1) respectively. The above reaction will be equilibrium at