In the equilibrium reaction, 2SO2(g)+O2(g)⇋2SO3(g), the partial pressures of SO2,O2 and SO3 are 0.662 atm, 0.101 atm and 0.662 atm respectively. Find the value of Kp (in atm−1):
A
0.303
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B
9.9
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C
0.606
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D
0.110
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Solution
The correct option is A9.9 The equilibrium reaction is given below:
2SO2(g)+O2(g)⇋2SO3(g)
The expression for the equilibrium constant, Kp=P2SO3P2SO2×PO2
Substituting values in the above expression, we get