Q.

Consider the reaction 2SO2(g)+O2(g)2SO3(g) for which Kc = 278 M-1. 0.001 mole of each of the reagents SO2(g), O2(g) and SO3(g) are mixed in a 1.0L, flask. Determine the reaction quotient of the system and the spontaneous direction of the system:

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a

Qc = 1000; the equilibrium shifts to the left

b

Qc = 0.001; the equilibrium shifts to the right

c

Qc = 0.001; the equilibrium shifts to the left

d

Qc = 1000; the equilibrium shifts to the right

answer is B.

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Detailed Solution

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Qc=SO32SO22O2=(0.001)2(0.001)2×0.001Qc=1000

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Consider the reaction 2SO2(g)+O2(g)⇌2SO3(g) for which Kc = 278 M-1. 0.001 mole of each of the reagents SO2(g), O2(g) and SO3(g) are mixed in a 1.0L, flask. Determine the reaction quotient of the system and the spontaneous direction of the system: