Medium
The temperature coefficient of a reaction is defined as:
- ASpecific reaction rate at $25\,^{\circ}C$
- BRate of the reaction at $100\,^{\circ}C$
- CRatio of the rate constants at temperatures $35\,^{\circ}C$ and $25\,^{\circ}C$
- DRatio of the rate constants at two temperatures differing by $1\,^{\circ}C$
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The rate constant $(K')$ of one reaction is double the rate constant $(K'')$ of another reaction. What is the relationship between the corresponding activation energies of the two reactions (${E_a}'$ and ${E_a}''$)?
Medium
View SolutionThe following graph is obtained for a reaction $(A \rightarrow P)$. The activation energy ($E_{a}$ in $kJ \ mol^{-1}$) and heat of reaction ($|\Delta H|$ in $kJ \ mol^{-1}$) for this reaction are respectively ($x=$ reaction coordinate; $y=E$ in $kJ \ mol^{-1}$)
In the given expression $r = P Z_{AB} e^{-E_a/RT}$,which term is called the steric factor?
Easy
View SolutionThe rate constant of a reaction varies with temperature according to the equation: $\log K = \text{constant} - \frac{E_a}{2.303 RT}$. If a plot of $\log K$ versus $1/T$ yields a straight line with a slope of $-5632$,then the activation energy of the reaction is .......... $kJ \ mol^{-1}$.
Difficult
View SolutionThe rate constant,the activation energy and the Arrhenius parameter of a chemical reaction at $25\,^oC$ are $3.0 \times 10^{-4}\,s^{-1}$,$104.4\,kJ\,mol^{-1}$ and $6.0 \times 10^{14}\,s^{-1}$ respectively. The value of the rate constant as $T \to \infty$ is
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