The rate constant of a first order reaction at 27°C is 10-3min-1. The 'temperature coefficient' of this reaction is 2. What is the rate constant (in min-1) at 17°C for this reaction ?

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10-3

5×10-4

2×10-3

10-2

answer is B.

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Detailed Solution

For every 10°rise or fall in temperature rate gets doubled or halved.rate =10-312t2-t110 as temperature is decreased from 270C to 170C =10-32=5×10-4 min-1

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