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Karnataka Board PUCPUC Science 2nd PUC Class 12

What will be the effect of temperature on rate constant? - Chemistry

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Questions

What will be the effect of temperature on rate constant?

What is the effect of temperature on the rate constant of a reaction? How can this effect of temperature on rate constant be represented quantitatively?

Short Answer
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Solution

The rate constant of a reaction is nearly doubled with a 10° rise in temperature. However, the exact dependence of the rate of a chemical reaction on temperature is given by the Arrhenius equation.

`k = Ae^(-E_a/(RT))`

Where,

A is the Arrhenius factor or the frequency factor

T is the temperature

R is the gas constant

Ea is the activation energy

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Notes

Students should refer to the answer according to their questions.

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Chapter 3: Chemical Kinetics - Intext Questions [Page 84]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 3 Chemical Kinetics
Intext Questions | Q 3.7 | Page 84
NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 3 Chemical Kinetics
Exercises | Q 3.7 | Page 85

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