12 Questions
What is the role of manganese dioxide in the decomposition of hydrogen peroxide?
To act as a catalyst and speed up the reaction
What type of catalysis occurs when the catalyst is in the same physical phase as the reactants?
Homogeneous catalysis
What is the minimum energy required for colliding particles to result in a reaction?
Activation energy
What is the term for a product of a reaction becoming a catalyst for the same reaction?
Autocatalysis
What is the term for the rate at a particular point in time during a reaction?
Instantaneous rate
What is the theory that involves homogeneous catalysis and proposes the formation of an intermediate complex?
Intermediate formation theory
What is the primary function of the catalyst in a catalytic reaction?
To lower the energy barrier of the reaction
What is the term for the accumulation of one substance at the surface of another?
Adsorption
What is the effect of an increase of 10K on the reaction mixture?
A small increase in the number of collisions
What is the term for particles that block active sites on the catalyst?
Catalytic poisons
How does the fineness of the catalyst affect the reaction rate?
A more finely divided catalyst increases the reaction rate
What is the relationship between concentration and rate of reaction?
Concentration is directly proportional to rate
Test your understanding of the rates of reaction, including the factors that affect reaction rates such as concentration, temperature, particle size, and the presence of a catalyst. This quiz also covers the instantaneous rate of a reaction and its measurement.
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