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Question
Velocity constant of a reaction at 290 K was found to 3.2×103sec1. When the temperature is raised to 310 K, it will be about:
Options:
A .  6.4×10−3
B .  3.2×10−4
C .  9.6×10−3
D .  1.28×10−2
Answer: Option D
:
D
From the Arhenius eqn, we know that the rate of a reaction doubles for every 10 K rise in temperature.
k2k1=22k2=3.2×103×4=1.28×102sec1

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