The rate constant for the gaseous reaction:
is
Interpretation:
The initial rate, the rate of formation and the concentration of
Concept introduction:
The rate of reaction in terms of concentration of reactants is called the rate equation or rate law.
The ideal gas equation depicts a relation between four variables. As it predicts the state of gases, so it is called the equation of state or ideal gas equation.
The ideal gas equation is as follows:
Here,
Answer to Problem 103AP
Solution:
(a)
(b)
Explanation of Solution
Given information: The given reaction is as follows:
The rate constant for this reaction is
a) The initial rate (M/min) of formation of HI.
Based on the units of rate constant fora second-order reaction, the rate law for the reaction is as follows:
According to the ideal gas equation, the concentrations of
The rearranged ideal gas equation is as follows:
Substitute the values of
In the givenreaction, there are equimolar amounts of hydrogen and iodine. Total pressure is
One atmospheric is equal to
The units of rate constant areconvertedinto
Substitute the rate constant in rate law as follows:
The rate is as follows:
The rate is
b) The rate of formation of HI and the concentration of HI (in morality) after 10.0 min.
According to the second order rate law, the concentration of
Here,
Substitute the values
After
Substitute the values of concentration of hydrogen, iodine and rate constant in the above expression,
The rate is calculated as follows:
The concentration of
The concentration of
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Chapter 14 Solutions
Chemistry
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- Give at least two physical properties that might be used to determine the rate of a reaction.arrow_forwardCan a reaction mechanism ever be proven correct? Can it be proven incorrect?arrow_forwardThe Raschig reaction produces the industrially important reducing agent hydrazine, N2H4, from ammonia, NH3, and hypochlorite ion, OCl−, in basic aqueous solution. A proposed mechanism is Step 1: Step 2: Step 3: What is the overall stoichiometric equation? Which step is rate-limiting? What reaction intermediates are involved? What rate law is predicted by this mechanism?arrow_forward
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