Which of the following statements is in accor | vedclass

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

Question

(A) According to the Arrhenius equation,$k = A e^{\frac{-E_{a}}{RT}}$.Taking the natural logarithm on both sides,we get $\ln k = \ln A - \frac{E_{a}}{

Vedclass · Accepted Answer

Rate of a reaction increases with increase in temperature

Vedclass · Answer

(A) According to the Arrhenius equation,$k = A e^{\frac{-E_{a}}{RT}}$.Taking the natural logarithm on both sides,we get $\ln k = \ln A - \frac{E_{a}}{R} 	imes \frac{1}{T}$.From this equation,it is clear that as the temperature $(T)$ increases,the term $\frac{E_{a}}{RT}$ decreases,which causes the rate constant $(k)$ to increase exponentially.Similarly,if the activation energy $(E_{a})$ decreases,the term $\frac{E_{a}}{RT}$ decreases,which also leads to an increase in the rate constant $(k)$.Therefore,both statements $A$ and $B$ are technically correct based on the Arrhenius equation. However,in standard multiple-choice contexts,the dependence on temperature is the primary characteristic.

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

Similar Questions

For the reaction of $H_2$ with $I_2$,the rate constant is $2.5 \times 10^{-4} \ dm^3 \ mol^{-1} \ s^{-1}$ at $327 \ ^oC$ and $1.0 \ dm^3 \ mol^{-1} \ s^{-1}$ at $527 \ ^oC$. The activation energy for the reaction,in $kJ \ mol^{-1}$ is: $(R = 8.314 \ J \ K^{-1} \ mol^{-1})$

The energy of activation is

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?

An endothermic reaction with high activation energy for the forward reaction is given by the diagram:

For a reaction,given below is the graph of $\ln k$ vs $\frac{1}{T}$. The activation energy for the reaction is equal to $...... \ cal \ mol^{-1}$. (Nearest integer). (Given : $R = 2 \ cal \ K^{-1} \ mol^{-1}$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module