Question
Calculate standard Gibbs energy for any gaseous reaction if values of K_p and R respectively are 3.5 10^ 17 ; 8.314\, JK ^ -1 mol ^ -1
Calculate standard Gibbs energy for any gaseous reaction if values of K_p and R respectively are 3.5 10^ 17 ; 8.314\, JK ^ -1 mol ^ -1
A. -100.1\, kJ mol ^ -1
The standard Gibbs free energy change is given by the relation: G^ = -RT K_p = -2.303 RT K_p Assuming standard temperature T = 298\, K : G^ = -2.303 8.314 298 (3.5 10^ 17 ) G^ = -5705.8 ( 3.5 + 17) G^ = -5705.8 (0.544 + 17) G^ = -5705.8 17.544 G^ = -100102\, J mol ^ -1 -100.1\, kJ mol ^ -1 Answer: -100.1\, kJ mol ^ -1
Related: Chemistry — Thermodynamics (C) · All PYQ Banks