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Grade 9Physical Chemistry

An increase of 10K in temperature rarely doubles the kinetic energy of particles but this much increase in temperature may be enough to double the rate of reaction.2?

Profile image of rishav kumar
12 Years agoGrade 9
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2 Answers

Profile image of Sunil Kumar FP
11 Years ago
an increse of 10k is not enough to double the kinetic energy because the molecular spped is not going to change significantly wheres at rate of reaction doubles
consider for example
T1=298k
T2=308K
Ea=52.8kj
from formula=logk2/k1=Ea/2.303R(1/T2-1/T2)
k2/k1=2
thus the rate of the reaction doubles
Profile image of Priyanshi soni
6 Years ago
Because on increasing temperature by 10K the fraction of molecules  having effective collision is increased by double hence, reaction rate get double.