What is the rate law expression for a reaction that is first order with respect
Practice Questions
Q1
What is the rate law expression for a reaction that is first order with respect to A and second order with respect to B? (2022)
Rate = k[A][B]^2
Rate = k[A]^2[B]
Rate = k[A]^2[B]^2
Rate = k[A][B]
Questions & Step-by-Step Solutions
What is the rate law expression for a reaction that is first order with respect to A and second order with respect to B? (2022)
Step 1: Identify the order of the reaction with respect to each reactant. In this case, it is first order with respect to A and second order with respect to B.
Step 2: Write the general form of the rate law expression. The rate law is usually written as Rate = k[A]^m[B]^n, where m is the order with respect to A and n is the order with respect to B.
Step 3: Substitute the values of m and n into the general form. Since the reaction is first order with respect to A, m = 1. Since it is second order with respect to B, n = 2.
Step 4: Write the final rate law expression by substituting the values: Rate = k[A]^1[B]^2.
Step 5: Simplify the expression. Since [A]^1 is just [A], the final rate law is Rate = k[A][B]^2.
