
Interpretation:
The initial rate of the given reaction at the given temperature has to be calculated.
Concept introduction:
Rate equation for the general reaction
Rate constants are independent of concentration but depend on other factors, most notably temperature.
The reaction with the faster rate will have the larger rate constant.
Order of a reaction: The sum of exponents of the concentrations in the rate law for the reaction is said to be order of a reaction.
The partial pressure of a gas in a mixture can be expressed as,
The

Answer to Problem 14.115SP
Initial rate of the given reaction is
Explanation of Solution
Given,
Gas mixture containing
The elementary reaction is,
This reaction follows second order kinetics, with a rate constant of
Given mole fractions of
The initial rate of the reaction at
Rate law for the given reaction is,
Rate constant value for the given reaction is
Using mole fraction value and total partial pressure, partial pressure of each reactant in the reaction can be calculated as follows,
Molar concentration of reactants can be determined with the help of ideal gas equation,
Substitute the concentration and the rate constant into the rate law to find the initial rate of the reaction,
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Chapter 14 Solutions
General Chemistry
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