(C) For an exothermic reaction,the enthalpy change $\Delta H$ is given by $\Delta H = E_{a(f)} - E_{a(b)}$,where $E_{a(f)}$ is the activation energy o

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(C) For an exothermic reaction,the enthalpy change $\Delta H$ is given by $\Delta H = E_{a(f)} - E_{a(b)}$,where $E_{a(f)}$ is the activation energy of the forward reaction and $E_{a(b)}$ is the activation energy of the backward reaction.Given: $\Delta H = -5 \, K \, cal/mol$ (since it is exothermic),$E_{a(f)} = 15 \, K \, cal/mol$.Substituting the values: $-5 = 15 - E_{a(b)}$.Therefore,$E_{a(b)} = 15 + 5 = 20 \, K \, cal/mol$.

Class 12 Chemistry Chemical Kinetics Collision theory, Energy of activation and Arrhenius equation

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For an exothermic reaction $A \rightarrow B$,the activation energy is $15 \, K \, cal/mol$ and the heat of reaction is $5 \, K \, cal/mol$. The activation energy for the reverse reaction $B \rightarrow A$ will be ......... $K \, cal/mol$.

A
$10$
B
$15$
C
$20$
D
$0$

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Chemical Kinetics

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Collision theory, Energy of activation and Arrhenius equation

$A$ reaction has an activation energy of $209 \, kJ \, mol^{-1}$. The rate increases $10$-fold when the temperature is increased from $27^{\circ} C$ to $X^{\circ} C$. The temperature $X$ is closest to
[Gas constant,$R = 8.314 \, J \, mol^{-1} \, K^{-1}$ ]

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The activation energy of a forward reaction is $50 \, kcal$. What will be the activation energy of its reverse reaction?

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The graph for the process $R \rightarrow P$ is given below. Determine the activation energy $(E_a)$ for the forward reaction if the energy of the reactant is $50 \ kJ$ and the energy of the transition state is $170 \ kJ$. (in $kJ$)

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What is Activation Energy $(E_a)$? Explain the reaction profile graph for activation energy and discuss the probability of effective collisions.

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For reactions $M, N, O$ and $P$,the activation energy order is $E_M < E_N < E_O < E_P$. For which reaction will the ratio $K_{310}/K_{300}$ be maximum?

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For an exothermic reaction $A \rightarrow B$,the activation energy is $15 \, K \, cal/mol$ and the heat of reaction is $5 \, K \, cal/mol$. The activation energy for the reverse reaction $B \rightarrow A$ will be ......... $K \, cal/mol$.

Similar Questions

$A$ reaction has an activation energy of $209 \, kJ \, mol^{-1}$. The rate increases $10$-fold when the temperature is increased from $27^{\circ} C$ to $X^{\circ} C$. The temperature $X$ is closest to[Gas constant,$R = 8.314 \, J \, mol^{-1} \, K^{-1}$ ]

The activation energy of a forward reaction is $50 \, kcal$. What will be the activation energy of its reverse reaction?

The graph for the process $R \rightarrow P$ is given below. Determine the activation energy $(E_a)$ for the forward reaction if the energy of the reactant is $50 \ kJ$ and the energy of the transition state is $170 \ kJ$. (in $kJ$)

What is Activation Energy $(E_a)$? Explain the reaction profile graph for activation energy and discuss the probability of effective collisions.

For reactions $M, N, O$ and $P$,the activation energy order is $E_M < E_N < E_O < E_P$. For which reaction will the ratio $K_{310}/K_{300}$ be maximum?

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$A$ reaction has an activation energy of $209 \, kJ \, mol^{-1}$. The rate increases $10$-fold when the temperature is increased from $27^{\circ} C$ to $X^{\circ} C$. The temperature $X$ is closest to
[Gas constant,$R = 8.314 \, J \, mol^{-1} \, K^{-1}$ ]