The gas phase reaction 2A(g) ? A?(g) At 400 K has ΔG° = +25.2 kJ mol?¹.
The equilibrium constant K? for this reaction is ________ ×10?². (Round off to the nearest integer).
[ Use: R = 8.3 J mol?¹ K?¹, In10 = 2.3, log?? 2 = 0.30, 1atm = 1 bar]
[antilog (-0.3) = 0.501]
The gas phase reaction 2A(g) ? A?(g) At 400 K has ΔG° = +25.2 kJ mol?¹.
The equilibrium constant K? for this reaction is ________ ×10?². (Round off to the nearest integer).
[ Use: R = 8.3 J mol?¹ K?¹, In10 = 2.3, log?? 2 = 0.30, 1atm = 1 bar]
[antilog (-0.3) = 0.501]
Asked by Shiksha User
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1 Answer
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ΔG° = + 25.2 kJ / mol
Using ΔG° = -2.3 RT log Kp
25.2 × 10³ = - 2.3 × 8.3 × 400 log Kpo 3.3 = log Kp
log (1 / 2×10³) = log Kp
Kp = 1 / (2×10³)
Using; Kp = Kc (RT)
1 / (2×10³) = Kc (0.083 × 400)? ¹
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