Consider the following plots of rate constant versus 1T for four different reactions. Which of the following orders is…
Chemical Kinetics · Class 12 · JEE Main Previous Year Question
Consider the following plots of rate constant versus for four different reactions. Which of the following orders is correct for the activation energies of these reactions?
- a
- b
- c✓
- d
For the Arrhenius equation, the slope of vs is .
A steeper negative slope corresponds to a higher activation energy.
From the graph, reading the slopes in order of steepness (most negative to least negative): c > a > d > b
Therefore:
Answer: Option (3)
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from Chemical Kinetics) inside The Crucible, our adaptive practice platform.
More JEE Main Chemical Kinetics PYQs
Consider the following statements related to temperature dependence of rate constants. Identify the correct statements: A. The Arrhenius equation holds true only for an elementary homogeneous…
Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endothermic reaction?
Consider the given plot of enthalpy of the following reaction between A and B: {A + B C + D} Identify the incorrect statement.
For the following reactions: {A} {700\,{K}} {Product} {A} [{catalyst}]{500\,{K}} {Product} It was found that the Ea is decreased by 30\,kJ/mol in the presence of catalyst. If the rate remains…
The rate of a certain biochemical reaction at physiological temperature (T) occurs 106 times faster with enzyme than without. The change in the activation energy upon adding enzyme is: