Podcast
Questions and Answers
Which factor does not affect the rate of a chemical reaction?
Which factor does not affect the rate of a chemical reaction?
- Concentration of reactants
- Volume of the reaction vessel (correct)
- Temperature
- Surface area of reactants
What is the main function of a catalyst in a chemical reaction?
What is the main function of a catalyst in a chemical reaction?
- Increasing the activation energy
- Slowing down the reaction
- Initiating the reaction
- Lowering the activation energy (correct)
In a chemical reaction, what happens to the concentration of reactants as the reaction proceeds?
In a chemical reaction, what happens to the concentration of reactants as the reaction proceeds?
- Remains constant
- Increases
- Fluctuates randomly
- Decreases (correct)
Which of the following statements correctly describes the rate of a chemical reaction?
Which of the following statements correctly describes the rate of a chemical reaction?
What is the primary purpose of determining the rate law for a chemical reaction?
What is the primary purpose of determining the rate law for a chemical reaction?
What effect does an increase in temperature generally have on the rate of a chemical reaction?
What effect does an increase in temperature generally have on the rate of a chemical reaction?
What is the relationship between the rate constant and the half-life of a first-order reaction?
What is the relationship between the rate constant and the half-life of a first-order reaction?
What does the half-life of a first-order reaction describe?
What does the half-life of a first-order reaction describe?
What is the unit of the rate constant for a first-order reaction?
What is the unit of the rate constant for a first-order reaction?
Which factor does not affect the half-life of a first-order reaction?
Which factor does not affect the half-life of a first-order reaction?
If two first-order reactions have different rate constants, which one will have a shorter half-life?
If two first-order reactions have different rate constants, which one will have a shorter half-life?
What is the relationship between the rate constant and the half-life of a first-order reaction?
What is the relationship between the rate constant and the half-life of a first-order reaction?
How does the half-life of a first-order reaction change with a decrease in the rate constant?
How does the half-life of a first-order reaction change with a decrease in the rate constant?
Why is the half-life formula applicable to any first-order reaction?
Why is the half-life formula applicable to any first-order reaction?
What can the half-life of a first-order reaction help predict?
What can the half-life of a first-order reaction help predict?
In what way is the half-life related to the initial concentration of the reactant in a first-order reaction?
In what way is the half-life related to the initial concentration of the reactant in a first-order reaction?
