Chemical Kinetics-Activation Energy [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry]: Questions 1 - 4 of 10
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Question 1
Appeared in Year: 2014
Question MCQ▾
Difference between activation energies of the reverse and forward steps of a reversible reaction is . If the pre-exponential factor of the forward reaction is double that of the reverse reaction at the same temperature, the equilibrium constant for the reaction at that temperature will be (CSIR December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 2
Appeared in Year: 1996
Question MCQ▾
he rate constant, the activation energy and the Arrhenius parameter of a chemical reaction at are respectively. The value of the rate constant as is (IITJ)
Choices
Choice (4) | Response | |
---|---|---|
a. | ∝ | |
b. | ||
c. | ||
d. |
Question 3
Question MCQ▾
In general it is observed that the rate of a chemical reaction doubles with every rise in temperature. If this generalization holds for a reaction in the temperature rang What would be the value of activation energy for this reaction?
Choices
Choice (4) | Response | |
---|---|---|
a. | 51.855 kJ/mol | |
b. | 63.25 kJ/mol | |
c. | 45.85 kJ/mol | |
d. | 71.855 kJ/mol |
Question 4
Question MCQ▾
Activation energy of a reaction is?
Choices
Choice (4) | Response | |
---|---|---|
a. | Minimum amount of energy needed to overcome potential barrier | |
b. | The energy released during the reaction | |
c. | The energy needed to form one mole of product | |
d. | The energy evolved when activation complex is formed |