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Question

I2 gets 5% dissociated into atoms when1.0 mole of I2(g)

is introduced into an evacuated flask of 1 L capacity at 150K.The Kp for the reaction I2(g)2I(g) at 150K is:


A
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B
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C
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D
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Solution

The correct option is A
I2(g)2I(g) α=5100=0.05
Initial conc. 1 0
Equilibrium conc. 1α 2α
Kc=[I]2[I2]=[2α]21α=[2×0.05]=1.05×102

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