Statement I: The temperature coefficient of a single-step reaction may be negative. Statement II: The rate of reaction having negative order with respect to a reactant decreases with the increase in c

Question

Statement I: The temperature coefficient of a single-step reaction may be negative. Statement II: The rate of reaction having negative order with respect to a reactant decreases with the increase in concentration of that reactant.

Prashant Kotian · Accepted Answer

Correct answer: D. Statement I is incorrect because for any single-step (elementary) reaction, the activation energy must be positive, which means the rate constant and reaction rate must increase with temperature (temperature coefficient > 1). Statement II is correct by definition of negative order.

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