For the reaction 2\(C_{6}H_{5}CO_{2}\)H(s)+13\(O_{2}(g)\rightarrow 12CO_{2} +O_{2}\) \(\Delta U^{O} = -772.7kJmol^{-1}\) at 298K . Calculate \(\Delta H^{0}\) .
(A) \(+760.3kJmol^{-1}\)
(B) \(-760.3kJmol^{-1}\)
(C) \(+670.3kJmol^{-1}\)
(D) \(-790.3kJmol^{-1}\)

For the reaction : C_(2)H_(5)OH(l)+3O_(2)(g)rarr2CO_(2)(g)+3H_(2)O(g) if Delta U^(@)= -1373 kJ mol^(-1) at 298 K . Calculate Delta H^(@)

For the reaction C_2H_(5)OH(l) + 3 O_(2)(g) rightarrow 2CO_(2)(g) + 3 H_(2)O(l) , which one is true ?

For the reaction C_(3)H_(8)(g) + 5 O_(2)(g) rightarrow 3CO_(2)(g) + 4 H_(2)O(l) at constant temperature , DeltaH - Delta E is

Calorific value of ethane, in k J/g if for the reaction 2C_(2)H_(6) + 7O_(2) rightarrow 4CO_(2) + 6 H_(2)O, Delta H = -745.6 kcal

For the reaction CH_(4(g))+2O_(2(g))hArrCO_(2(g))+2H_(2)O_(l) : ( DeltaH=-170.8 kJmol^(-1) ). Which of the following statement is not true?

For the reaction, 2A (s) + 2B (g)to C (g) + D(s) at 298K Delta U ^(@) =-10.5KJ and Delta S ^(@)=-44.10 JK^(-1) Calculate Delta G ^(@) for the reaction (in Joules).

The enthalpy change ( DeltaH ) of the reaction at 298 K C_2H_5OH(l) + 3O_2(g) to 2CO_2(g) + 3H_2O (l) is found to be -326.7 kcal. Calculate DeltaE for the given reaction.

DeltaG^(c-) or the reaction is , 4Al+3O_(2)+6H_(2)O+4overset(c-)(O)H rarr 4 Al(OH)_(4)^(c-) E^(c-)._(cell)=2.73V Delta_(f)G^(c-)._((overset(c)(O)H))=-157k J mol^(-1) Delta_(f)G^(c-)._((overset(c-)(H2O))=-237k J mol^(-1) (a) -3.16xx10^(3)kJ mol^(-1) (b) -0.79xx10^(3)kJmol^(-1) (c) -0.263xx10^(3)k J mol^(-1) (d) +0.263xx10^(3)k J mol^(-1)

For the reaction 2SO_(2)(g)+O_(2)(g)=2SO_(3)(g) deltaH=-57.2kJmol^(-1) and K_(C)=1.7xx10^(16) ltbr. Which of the following statements is INCORRECT?

The temperature at which the given reaction is at equilibrium Ag_(2)O_(s) rightarrow 2Ag(s) + 1/2 O_(2)(g) Delta H = 40.5 kJ mol^(-1) and DeltaS= 0.086 k J mol^(-1) K^(-1)