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15. Chemical Kinetics

Catalyst

15. Chemical Kinetics

Catalyst

Multiple Choice
Which of the following is true about a catalyst?
Open Question
A substance that influences the reaction but does not participate in the reaction is a
Open Question
Enzymes are catalysts because they lower the ______________ of a chemical reaction.
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A(n) ___ is a substance that speeds up a chemical reaction without being used up in the reaction.
Open Question
A ___ is a substance that speeds up a chemical reaction without being used up in the reaction.
Open Question
What are the roles of hydrogen peroxide oxygen hydrogen and catalase in the following reaction?
Open Question
A substance that accelerates any chemical reaction but is not consumed in the reaction is a _____.
Open Question
A catalyst is not a product or a reactant of a chemical reaction why not
Multiple Choice
At 300 K, a catalyst lowers the activation barrier from 20 kJ/mol to 10 kJ/mol. Which of the following statements is true regarding the rate constant for the catalyzed reaction compared to the uncatalyzed reaction? (R = 8.314 J mol⁻¹ K⁻¹)