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08/10/2021 1:20 pm
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The partial pressure of CH3OH(g), CO(g), and H2(g) in equilibrium mixture for the reaction,
CO(g) + 2H2(g) ⇌ CH3OH(g)
are 2.0, 1.0 and 0.1 atm respectively at 427°C. The value of Kp for the decomposition of CH3OH to CO and H2 is
(a) 102 atm
(b) 2 × 102 atm-1
(c) 50 atm2
(d) 5 × 10-3 atm2
1 Answer
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08/10/2021 1:24 pm
Correct answer: (d) 5 × 10-3 atm2
Explanation:
Kp = \(\frac{PCH_3OH}{PCO \times PH_2}\)
= \(\frac{2}{1 \times (0.1)^2}\)
= 200
For reverse reaction
\(\frac{1}{K_p}\) = \(\frac{1}{200}\)
= 5 × 10-3 atm2