5-HMF Breakdown: Activation Energy and Frequency Factor

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Questions and Answers

What is the effect of increasing the activation energy on the rate of a catalytic reaction?

It decreases the rate of the reaction. (correct)

It changes the order of the reaction.

It increases the rate of the reaction.

It has no effect on the rate of the reaction.

What is the relationship between the frequency factor and the activation energy?

The frequency factor is independent of the activation energy.

The frequency factor is the square root of the activation energy.

The frequency factor is directly proportional to the activation energy.

The frequency factor is inversely proportional to the activation energy. (correct)

What is the effect of increasing the temperature on the rate of decomposition of 5-HMF?

It decreases the rate of decomposition.

It has no effect on the rate of decomposition.

It increases the rate of decomposition. (correct)

It changes the order of the decomposition reaction.

What is the relationship between the half-life of a reaction and the frequency factor?

The half-life is inversely proportional to the frequency factor. Signup and view all the answers

What is the order of a reaction that has a rate constant that is dependent on the concentration of the reactant?

Second-order reaction. Signup and view all the answers

What is the primary factor that affects the rate of a reaction according to the Collision Theory?

Frequency of collisions Signup and view all the answers

What is the effect of increasing the temperature on a reaction?

Increases the frequency of collisions Signup and view all the answers

Which of the following reactions is most likely to be affected by light?

Decomposition reaction Signup and view all the answers

What is the purpose of a catalyst in a reaction?

To lower the activation energy Signup and view all the answers

What is the relationship between the rate of a reaction and the concentration of reactants?

Rate is directly proportional to the concentration Signup and view all the answers

In a reaction consisting of multiple steps, which step determines the overall rate of the reaction?

The slowest step Signup and view all the answers

What is the relationship between the rate of a reaction and the activation energy?

The rate of a reaction is inversely proportional to the activation energy Signup and view all the answers

In a first-order reaction, what is the effect of doubling the concentration of the reactant on the rate of the reaction?

The rate of the reaction increases by a factor of 2 Signup and view all the answers

What is the effect of a catalyst on the activation energy of a reaction?

A catalyst decreases the activation energy of a reaction Signup and view all the answers

According to the half-life equation, what is the relationship between the half-life of a reaction and the concentration of the reactant?

The half-life is independent of the concentration of the reactant Signup and view all the answers

Study Notes

Factors Affecting Reaction Rates

Temperature, solvents, catalysts, and light are factors that influence reaction rates.

Collision Theory

Reaction rates are proportional to the number of collisions per unit time.

Kinetic Study of Reaction Mechanisms

The rate of a reaction is determined by the slow step.
The detailed mechanism of a reaction is revealed through kinetic studies.

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Description

This quiz examines the breakdown of 5-HMF within a specific temperature range, focusing on the activation energy and frequency factor. Test your knowledge of chemical reactions and kinetics!