a)0.0471
b)9.43*10^-6
c)0.572
d)9.55*10^-4
e)5.4*10^13
Consider the reaction 2NO (g) + O2 (g)------> 2NO2 (g) + If Kp= 2.2x1012 at 25C, then Kc is?
2019-05-24 9:57 pm
回答 (1)
2019-05-25 3:44 am
2NO(g) + O₂(g) ⇌ 2NO₂(g) …… Kp = 2.2 × 10¹² at 298 K (25°C)
Gas law: PV = nRT
Concentration, (n/V) = P/(RT)
Kc = [NO₂]² / {[NO]² [O₂]}
= [P(NO₂)/(RT)]² / {[P(NO)²/(RT)] [P(O₂)/RT]}
= {P(NO₂) / [P(NO)² P(O₂)]} × RT
= Kp × RT
= (2.2 × 10¹²) × 0.08206 × 298
= 5.4 × 10¹³
The answer: e) 5.4 × 10¹³
Gas law: PV = nRT
Concentration, (n/V) = P/(RT)
Kc = [NO₂]² / {[NO]² [O₂]}
= [P(NO₂)/(RT)]² / {[P(NO)²/(RT)] [P(O₂)/RT]}
= {P(NO₂) / [P(NO)² P(O₂)]} × RT
= Kp × RT
= (2.2 × 10¹²) × 0.08206 × 298
= 5.4 × 10¹³
The answer: e) 5.4 × 10¹³
收錄日期: 2021-04-18 18:22:13
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