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Molecularity of Reaction

The activatio...

Question

The activation energy of a chemical reaction can be determined by

A

Evaluating rate constant at standard temperature

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B

Changing concentration of reactants

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C

Evaluating rate constants at two different temperatures

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D

Evaluating velocities of reaction at two different temperatures

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Solution

The correct option is C
Evaluating rate constants at two different temperatures

The activation energy of a chemical reaction can be determined by evaluating rate constants at two different temperatures.

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Similar questions

Q. Activation energy

(E_{a})

and rate constant

(k_{1}

k_{2})

of a chemical reaction at two different temperatures

(T_{1}

T_{2})

are related by:

Q. Activation energy

(E_{a})

and rate constants (

k_{1}

k_{2}

) of a chemical reaction at two different temperature (

T_{1}

T_{2}

) are related by:

Q. For decomposition of

N_{2} O_{5}

, rate constant were determined at two different temperature. At

27^{\circ} C,

rate constant was

2 \times 10^{- 4} {sec}^{- 1}

47^{\circ} C

the rate constant is

6 \times 10^{- 4} {sec}^{- 1}

.
Then identify the correct statement(s).
(Given

l n 3 = 1.1

)

Q. The rate constant

K_{1}

of a reaction is found to be double that of a rate constant

K_{2}

of another reaction. The relationship between corresponding activation energies of the two reactions at same temperature

(E_{1}

E_{2})

can be represented as:

Q. Which is the correct expression for relating rate constant of a reaction at two different temperature?

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