15. Chemical Kinetics
Catalyst
- Multiple ChoiceWhen compared with the normal reaction pathway, a catalyzed reaction pathway will always have:28views
- Multiple ChoiceWhich process would speed up a reaction rate by decreasing the activation energy?234views
- Multiple ChoiceIf a catalyst lowers the activation energy of a reaction, which of the following is most likely to occur?28views
- Multiple ChoiceWhich of the following substances can be used as a catalyst to speed up the decomposition of hydrogen peroxide (H_2O_2)?21views
- Multiple ChoiceWhich of the following statements correctly describes the effect of a catalyst on a chemical reaction?25views
- Multiple ChoiceHow does the presence of a catalyst affect the enthalpy change (ΔH) of a chemical reaction?75views
- Multiple ChoiceWhat is the effect of a catalyst lowering the activation energy of a chemical reaction?26views
- Multiple ChoiceWhich of the following best describes how a catalyst benefits a chemical reaction?26views
- Multiple Choice
Which of the following statements is true regarding the energy diagram provided?
i. The reaction is endothermic.
ii. Activation energy would be less than + 10 kJ after a catalyst is added.
iii. The reaction absorbs energy.
iv. Activation energy would be greater than + 10 kJ after a catalyst is added.
1689views13rank - Multiple ChoiceWhich of the following is true about a catalyst?997views1rank
- Open Question
A substance that influences the reaction but does not participate in the reaction is a
649views - Open Question
Enzymes are catalysts because they lower the ______________ of a chemical reaction.
594views1rank - Open Question
A(n) ___ is a substance that speeds up a chemical reaction without being used up in the reaction.
390views - Open Question
A ___ is a substance that speeds up a chemical reaction without being used up in the reaction.
454views - Open Question
What are the roles of hydrogen peroxide oxygen hydrogen and catalase in the following reaction?
388views