For the reaction 2A(g)+B(g)`rarr2D(g),` `DeltaU^theta`=-10.5 kJ and `DeltaS^theta=-44.1Jk^-1` Calculate `DeltaG^theta` for the reaction and predict whether the reaction may occur spontaneously.

For the reaction: 2AZ_(g) + B_(g) rarr 2D_(g) DeltaU^@ = -10.5 kJ//mol DeltaS^@ = -44.1 kJ//mol at 298 K. Calculate DeltaG^@ for the reaction.

For the reaction, 2Cl(g) rarr Cl_2(g) what are the signs of DeltaH and DeltaS ?

For the reaction X _(2) O _(4 (l)) to 2 XO _(2 (g)) , Delta u = 2.1 kcal mol ^(-1), Delta S = 20 cal K ^(-1) mol ^(-1) at 300 K. Calculate Delta G and predict whether the reaction is spontaneous at 300 K

a) Explain the effect of temperature on the spontaneity of a process based on Gibbs equation. b) For a reaction 2A(g)+B(g)rightarrow2D(g) , enthalpy and entropy changes are - 20.5 kJ mol^-1 and -50.4 J K^-1mol^-1 respectively. Predict whether the reaction occurs at 25^oC.

Delta H and DeltaS for the reaction Ag_2O (s) iff 2Ag(s)+ 1/2O_2(g) are 30.56 kJ mol^-1 and 66.0 JK^-1 respectively. Calculate the temperature at which the reaction would be at equilibrium. Also predict the direction of the reaction above this temperature.

The rate expression for the reaction A (g) + B (g) rarr C (g) is rate = kC_(A)^(2)C_(B)^(1//2) . What changes in the initial concentrations of A and B will cause the rate of reaction to increase by a factor of eight?