3 Questions
Which of the following factors does NOT affect the rate of a chemical reaction?
Pressure
What is the purpose of a catalyst in a chemical reaction?
To provide an alternate reaction pathway with lower activation energy
What is the order of a chemical reaction with respect to a particular reactant?
The exponent to which the concentration of the reactant is raised in the rate equation
Study Notes
Factors Affecting Chemical Reaction Rate
- Concentration of reactants affects the rate of a chemical reaction
- Temperature affects the rate of a chemical reaction
- Surface area of reactants affects the rate of a chemical reaction
- Pressure affects the rate of a chemical reaction
- Presence or absence of light affects the rate of a chemical reaction
- The rate of a chemical reaction is NOT affected by the color of the reactants
Catalysts in Chemical Reactions
- A catalyst is a substance that speeds up a chemical reaction without being consumed by the reaction
- A catalyst lowers the activation energy required for a chemical reaction to occur
- A catalyst remains unchanged at the end of a chemical reaction
Order of a Chemical Reaction
- The order of a chemical reaction with respect to a particular reactant is the power to which the concentration of the reactant is raised in the rate equation
- A first-order reaction is one in which the rate of reaction is directly proportional to the concentration of the reactant
- A second-order reaction is one in which the rate of reaction is proportional to the square of the concentration of the reactant
Test your knowledge of chemical reaction engineering with this quiz! Learn about the factors that do not affect the rate of a reaction, the purpose of a catalyst, and the order of a reaction with respect to a reactant.
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