Worksheet: Second-Order Rate Plots

In this worksheet, we will practice plotting concentration–time data for second-order reactions to calculate the rate constants and initial concentrations.

Q1:

The concentration of a reactant A was monitored during the course of a reaction. The data were plotted on a graph of 1[A] against time. If the reaction is of the second order with respect to A, what is the initial concentration of A in terms of the gradient of the plot 𝑚 and the 𝑦-intercept 𝑐?

  • A 1 𝑐
  • B 1 𝑐
  • C 1 𝑚
  • D 𝑚
  • E 𝑐

Q2:

The concentration of a reactant A was monitored during the course of a reaction. The data were plotted on a graph of 1[]A against time. If the reaction is of the second order with respect to A, what is the rate constant of the reaction in terms of the gradient of the plot 𝑚 and the 𝑦-intercept 𝑐?

  • A 𝑐
  • B 1 𝑚
  • C 1 𝑐
  • D 𝑚 𝑐
  • E 𝑚

Q3:

A reaction is of the second order with respect to reactant A. Which of the following graphs illustrates the variation in A with the reaction time, 𝑡?

  • A
  • B
  • C
  • D
  • E

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.