Question

Item 29 Calculate the change in Gibbs free energy for each of the sets of AH ASP, and T given in the following problems. Part A AH = + 131 kJ : AS. = - 262 J/K;T = 308 K % AED Om ? AG. Submit Request Answer Part B AHX = - 131 kJ: ASX = +262 J/K:T = 308 K O AL ROO? AG = Submit Request Answer Part

Answer 1

Answer-

Part A)

Given

$\Delta$H^$\degree$_rxn = + 131 kJ

$\Delta$S^$\degree$_rxn = - 262 J/K or - 0.262 kJ/K    [1 J/K = 0.001 kJ/K]

T = 308 K

$\Delta$G^$\degree$_rxn = ?

We know that,

$\Delta$G^$\degree$_rxn = $\Delta$H^$\degree$_rxn - T$\Delta$S^$\degree$_rxn

$\Delta$G^$\degree$_rxn = 131kJ - (308 K *- 0.262 kJ/K)

$\Delta$G^$\degree$_rxn = 211.7 kJ [Answer]

Part B)

Given

$\Delta$H^$\degree$_rxn = - 131 kJ

$\Delta$S^$\degree$_rxn = + 262 J/K or 0.262 kJ/K    [1 J/K = 0.001 kJ/K]

T = 308 K

$\Delta$G^$\degree$_rxn = ?

We know that,

$\Delta$G^$\degree$_rxn = $\Delta$H^$\degree$_rxn - T$\Delta$S^$\degree$_rxn

$\Delta$G^$\degree$_rxn = - 131kJ - (308 K * 0.262 kJ/K)

$\Delta$G^$\degree$_rxn = - 211.7 kJ [Answer]