For reactions carried out under standard-state conditions, Equation (18.10) takes the form G = H - TS.

For reactions carried out under standard-state conditions, Equation (18.10) takes the form ˆ†G° = ˆ†H° - Tˆ†S°.
(a) Assuming ˆ†H° and ˆ†S° are independent of temperature, derive the equation

where K1 and K2 are the equilibrium constants at T1 and T2, respectively.
(b) Given that at 25°C Kc is 4.63 × 10-3 for the reaction
N2O4(g) ‡Œ 2NO2(g) ˆ†H° = 58.0 kJ/mol
calculate the equilibrium constant at 65°C.

Transcribed Image Text:

Ан (Т, - т) к In K1