Reaction Order Worksheet
Explore the concepts of reaction order, rate laws, and how to determine the order of a chemical reaction with this comprehensive worksheet for Grade 10 Chemistry students.
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Reaction Order Worksheet
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
Match each term with its correct definition.
1. Reaction Order
a. Equation relating reaction rate to reactant concentrations.
2. Rate Law
b. Sum of the exponents of the concentration terms in the rate law.
3. Rate Constant (k)
c. A proportionality constant in the rate law.
1. For a reaction A + B → C, if doubling the concentration of A doubles the reaction rate, and doubling the concentration of B has no effect on the reaction rate, what is the order of the reaction with respect to A and B, respectively?
First order in A, First order in B
First order in A, Zero order in B
Second order in A, First order in B
Zero order in A, First order in B
2. Which of the following statements is true about the overall reaction order?
It can always be determined from the stoichiometric coefficients.
It is the sum of the orders with respect to each reactant.
It is always a whole number.
It is determined by the slowest step in the reaction mechanism.
1. The rate law expresses the relationship between the rate of a reaction and the of the reactants.
2. For a zero-order reaction, the rate of the reaction is of the reactant concentration.
3. The units of the rate constant (k) depend on the reaction order.
1. Explain how the order of a reaction with respect to a specific reactant can be determined experimentally.
2. Differentiate between a zero-order reaction and a first-order reaction in terms of how their rates are affected by changes in reactant concentration.
1. The overall order of a reaction is always equal to the molecularity of the elementary step.
True
False
2. A catalyst affects the rate of a reaction but does not change the overall reaction order.
True
False
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