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Course: Physical Chemistry (Essentials) - Class 12 > Unit 3

Lesson 5: Temperature dependence of reaction rate
Science
Physical Chemistry (Essentials) - Class 12
Chemical kinetics
Temperature dependence of reaction rate
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Effect of temperature on reaction rate.

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Problem

Sagar wrote down the expressions for the rate constants for two chemical reactions that he observed simultaneously.
The rate constant for the 1st reaction was,
k1=1012e−500/T
and the rate constant for the 2nd reaction was,
k2=1014e−2000/T
If he took the same concentration of reactants, at what temperature would Sagar observe the same rate for the two reactions.
Given- log⁡10x=xlog⁡10=x, where x is any number.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
oC.