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  • I need help with - Chemical kinetics - NEET

The rate of the reaction 2NO+Cl_{2}\rightarrow 2NOCl is given by the rate equation rate=k [NO]2 [Cl2]

The value of the rate constant can be increased by:

  • Option 1)

    Increasing the concentration of NO

  • Option 2)

    Increasing the temperature

  • Option 3)

    Increasing the concentration of the Cl2

  • Option 4)

    Doing all of these

 

Answers (1)

best_answer

As we learnt in

Arrhenius Equation -

Arrhenius gave the quantitative dependence of rate constant on temperature by the Arrhenius equation.

- wherein

k = A e^{-E_{a}/RT}

In k=InA-\frac{E_{a}}{RT}

k = Rate constant

 

The value of rate constant cannot be altered by changing concentration of reactants  but by changing temperature, as given by arrhenius equation. As temperature rises, so does k.

k=A_{e}^{-Ea/RT}

therefore, solution is 2


Option 1)

Increasing the concentration of NO

incorrect

Option 2)

Increasing the temperature

correct

Option 3)

Increasing the concentration of the Cl2

incorrect

Option 4)

Doing all of these

incorrect

Posted by

Aadil

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