Q.
The equilibrium constant of the reactionSO2(g) + 1/2 O2(g) ⇋ SO3(g) is 4 × 10-3 atm-1/2. The equilibrium constant of the reaction2SO3(g) ⇋ 2SO2(g) + O3(g) would be
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a
250 atm
b
4 × 103 atm
c
0.25 × 104 atm
d
6.25 × 104 atm
answer is D.
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Detailed Solution
SO2(g) +12 O2(g) → SO3(g) KP=4 × 10-3SO3 → SO2(g) + 12O2(g) K'p=1Kp K'p=14 × 10-3 2SO3 → 2SO2 + O2(g) K''p=K''p2 = 14 × 10-32 = 10004 =6250=625 × 102=6.25 × 104 atm
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