Search SchoolNGR

Thursday, 02 April 2026
Register . Login

(1 /(2) N2(g) + (1) / (2)O2(g) → NO(g) ∆H° ...

(1 /(2) N2(g) + (1) / (2)O2(g) → NO(g) ∆H° 89 KJ mol-. If the entropy change for the reaction above at 25°C is 11.8 J mol-, calculate the change in free energy. ∆G°, for the reaction at 25°C?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 88.71 KJ
  • B 85.48 KJ
  • C -204.00 KJ
  • D -3427.40 KJ
Correct Answer: Option D
Explanation:
∆G = ∆H - T∆S; T = 2s° + 273 = 298 k
∆G = 89 - 298 x 11.8 = -3427.4

Share question on: