The progress of the reaction A ⇌ nB, with time is represented by the graph given below. (A drops from 0.5 to 0.3, B rises from 0.1 to 0.5) The value of n is

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Prashant Kotian · Accepted Answer

Correct answer: B. The concentration of A decreases from 0.5 M to 0.3 M, a change of -0.2 M. The concentration of B increases from 0.1 M to 0.5 M, a change of +0.4 M. The stoichiometry n is the ratio of change in B to change in A: n = 0.4 / 0.2 = 2. Therefore, correct answer is B.

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