
(a)
Interpretation:
The reaction which has greater rate constant should be determined from the given plots of concentration of reactant versus time for two first order reaction at the same temperature.
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.
(b)
Interpretation:
The reaction which has greater rate constant should be determined from the given plots of concentration of reactant versus time for two first order reaction at the same temperature.
Concept introduction:
Rate of the reaction is the change in the concentration of reactant or a product with time. It can be varied in accordance with temperature, pressure, concentration, presence of catalyst, surface area…
Rate equation for the general reaction
Integrated rate law for a first order reaction is,
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.

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Chapter 14 Solutions
EBK GENERAL CHEMISTRY: THE ESSENTIAL CO
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