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Q.

The rate constants of a reaction at 300 K & 280 K respectively are k1 & k2. Then

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a

k2=4k1

b

k1=20k2

c

k1=0.5 k2

d

k1=4k2

answer is C.

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Detailed Solution

detailed_solution_thumbnail

The value of rate constant value gets double for each 10°C rise in temperature. Thus for 20°C rise in temperature, the rate constant becomes 4 times. 
∴K1=4K2

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