For the decomposition of N_2O_5, the reaction | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The activation energy $(E_a)$ is the minimum energy required for a reaction to occur. It is a characteristic property of the reaction mechanism an

Vedclass · Accepted Answer

$E_a' = E_a$

Vedclass · Answer

(C) The activation energy $(E_a)$ is the minimum energy required for a reaction to occur. It is a characteristic property of the reaction mechanism and the transition state,which depends on the nature of the reactants and the pathway,not on the stoichiometric coefficients used to balance the chemical equation. When we multiply or divide the stoichiometric coefficients of a balanced chemical equation by a constant factor,the reaction pathway and the transition state remain the same. Therefore,the activation energy $E_a$ remains unchanged regardless of the stoichiometric coefficients. Thus,$E_a = E_a'$.

For the decomposition of $N_2O_5,$ the reaction is $2N_2O_{5(g)} \rightarrow 4NO_{2(g)} + O_{2(g)}$ with activation energy $E_a.$ If the reaction is written as $N_2O_{5(g)} \rightarrow 2NO_{2(g)} + 1/2 O_{2(g)}$ with activation energy $E_a',$ what is the relationship between $E_a$ and $E_a'$?

Similar Questions

The first order rate constant for the decomposition of ethyl iodide by the reaction $C_{2}H_{5}I_{(g)} \rightarrow C_{2}H_{4(g)} + HI_{(g)}$ at $600 \ K$ is $1.60 \times 10^{-5} \ s^{-1}$. Its energy of activation is $209 \ kJ/mol$. Calculate the rate constant of the reaction at $700 \ K$.

Which of the following plots is in accordance with the Arrhenius equation?

For the reaction $A + B \rightarrow C + D$,$\Delta H = -20 \ kJ \ mol^{-1}$. The activation energy for the forward reaction is $85 \ kJ \ mol^{-1}$. The activation energy for the reverse reaction is ......... $kJ \ mol^{-1}$.

The differential form of the Arrhenius equation is:

$A$ large increase in the rate of a reaction for a rise in temperature is due to:

Vedclass Test Series

Exam Paper Generator

Online Exam Module