Textbook Question
A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C. a. Write a rate law for the reaction.
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Ch.14 - Chemical Kinetics
Chapter 14, Problem 41
Consider the data showing the initial rate of a reaction (A → products) at several different concentrations of A. What is the order of the reaction? Write a rate law for the reaction including the value of the rate constant, k.
Verified step by step guidance1
Step 1: Understand the rate law equation. The rate law for a reaction A → products is generally expressed as rate = k[A]^n, where k is the rate constant, [A] is the concentration of reactant A, and n is the order of the reaction with respect to A.
Step 2: Analyze the data provided. Look at how the initial rate of the reaction changes as the concentration of A changes. This will help determine the order of the reaction.
Step 3: Determine the reaction order. If the rate doubles when [A] doubles, the reaction is first order (n=1). If the rate quadruples when [A] doubles, the reaction is second order (n=2). If the rate remains unchanged when [A] changes, the reaction is zero order (n=0).
Step 4: Write the rate law. Once the order n is determined, write the rate law as rate = k[A]^n.
Step 5: Calculate the rate constant k. Use one set of data (concentration and rate) to solve for k in the rate law equation.
Related Practice
Open Question
A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C. b. What is the overall order of the reaction? order in A, one-half order in B, and second order in C
Textbook Question
A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C. c. By what factor does the reaction rate change if [A] is doubled (and the other reactant concentrations are held constant)? d. By what factor does the reaction rate change if [B] is doubled? e. By what factor does the reaction rate change if [C] is doubled? f. By what factor does the reaction rate change if [C] is doubled (and the other reactant concentrations are held constant)?
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Open Question
Consider the tabulated data showing the initial rate of a reaction (A → products) at several different concentrations of A. What is the order of the reaction? Write a rate law for the reaction including the value of the rate constant, k.
Textbook Question
Consider the tabulated data showing the initial rate of a reaction (A → products) at several different concentrations of A. What is the order of the reaction? Write a rate law for the reaction including the value of the rate constant, k.
2241
views
Open Question
The tabulated data were collected for this reaction: 2 NO2(g) + F2(g) → 2 NO2F(g). Write an expression for the reaction rate law and calculate the value of the rate constant, k. What is the overall order of the reaction?