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Rate of formation of SO3 in the following reaction 2SO2 + O2 → 2SO3 is 100 g min–1. Hence rate of disappearance of O2 is :

(A) 50 gmin-1 

(B) 40 gmin–1

(C) 200 gmin–1 

(D) 20 gmin–1

1 Answer

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Best answer

Correct Answer is: (D) 20 gmin–1

d/dt [SO3] = 100 gram/min

= 100/80 mole /min = 1.25 mole/min.

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