Chemistry, asked by rislasalam128, 7 months ago

Rate constant of a reaction at 1000k and 1060k are 0.01 and 0.60 respectively. Find the values of Ea,

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Answered by aparnajha13052004
1

Explanation:

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12th

Chemistry

Chemical Kinetics

Effect of Temperature and Catalyst on Rate of a Reaction

The rate constant of a reac...

CHEMISTRY

The rate constant of a reaction at 700 K and 760 K are 0.011M

−1

s

−1

, respectively. The values of Arrhenius parameter is:

December 20, 2019

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Elizabeth Mouni

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ANSWER

Substituting the value of K and T in Arrhenius equation:

k=Ae

−Ea/RT

log

k

1

k

2

=

2.3R

E

a

(

T

1

T

2

T

2

−T

1

)

log (

0.011M

−1

s

−1

0.105M

−1

s

−1

)=

2.3×8.314

E

a

×[

760×700

760−700

]

Solve for E

a

:

E

a

=166.351×10

3

Jmol

−1

=166.351kJmol

−1

Value of A can be determined

log k = log A −

2.3×8.314

166.35kJmol

−1

×

700k

1

Solve for log A and take antilog.

∴A=2.8×10

10

M

−1

s

−1

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