# Problem: Consider the reaction A → BThe rate of the reaction is 2.0 x 10 ‐2 M/s when the concentration of A is 0.31 M. Calculate the rate constant if the reaction is second order in A,  include the correct units in your answer.A) 0.0645 s‐1B) 0.208 s‐1C) 0.0062 s‐1D) 0.0645 M‐1s‐1E) 0.208 M‐1s‐1

88% (67 ratings)
###### FREE Expert Solution

We’re being asked to calculate the rate constant with the correct units for the given reaction. We can calculate the rate constant of the reaction from its rate law.

Recall that the rate law only focuses on the reactant concentrations and has a general form of:

k = rate constant
A & B = reactants
x & y = reactant orders

Reaction:      A → B

Given:            Order with respect to A = 2

Rate = 2.0x10-2 M/s

[A] = 0.31 M

88% (67 ratings) ###### Problem Details

Consider the reaction A → B

The rate of the reaction is 2.0 x 10 ‐2 M/s when the concentration of A is 0.31 M. Calculate the rate constant if the reaction is second order in A,  include the correct units in your answer.

A) 0.0645 s‐1
B) 0.208 s‐1
C) 0.0062 s‐1
D) 0.0645 M‐1s‐1
E) 0.208 M‐1s‐1

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Rate Law concept. You can view video lessons to learn Rate Law. Or if you need more Rate Law practice, you can also practice Rate Law practice problems.

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Based on our data, we think this problem is relevant for Professor Harwood's class at PURDUE.