Gyan Sutra Chemistry for Students Practice FREE

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Gyan Sutra Chemistry Objective for Students

A large increase in the rate constant with a small rise in temperature for a gaseous reaction is indicative of

The activation energy of a reaction is zero. The rate constant of the reaction

Pick the appropriate choice about the collision theory of reaction rates. I) It explains the effect of temperature on rate! of reaction. II) It assumes that the reactants must be in the correct orientation to react. III) It says the rate depends upon the frequency at which reactants collide. IV) The collisions having energy higher than the threshold value give successful reactions. The correct options are

Gyan Sutra Chemistry Objective for Students

A large increase in the rate constant with a small rise in temperature for a gaseous reaction is indicative of

(A) a Large number of collisions at higher temperatures.

(B) The high value of activation energy of the reaction.

(D) Increase in the average speed of the molecules.

Option c - The high value of the pre-exponential factor

The activation energy of a reaction is zero. The rate constant of the reaction

(A) Increases with an increase in temperature.

(B) The high value of activation energy of the reaction.

(D) Increase in the average speed of the molecules.

Option d - Increase in the average speed of the molecules

Pick the appropriate choice about the collision theory of reaction rates. I) It explains the effect of temperature on rate! of reaction. II) It assumes that the reactants must be in the correct orientation to react. III) It says the rate depends upon the frequency at which reactants collide. IV) The collisions having energy higher than the threshold value give successful reactions. The correct options are

(A) I, III, IV

(B) II, IV

(D) I, II, III, IV

Option d - I, II, III, IV

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Gyan Sutra Chemistry Objective for Students

A large increase in the rate constant with a small rise in temperature for a gaseous reaction is indicative of

The activation energy of a reaction is zero. The rate constant of the reaction

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