Theories Of Reaction Rates

We are given the initial concentration and the concentration after 10 minutes. To find the rate of change of concentration, we can use the following formula for rate: where: - , - minutes. Thus, the rate of concentration change is: Since the rate is positive for decrease, the rate is . Thus, the rate is .

We are given the initial and final concentrations of a reaction over a certain time period, and we need to calculate the rate constant using the integrated rate law.

1. Step 1: Use the integrated rate law. The general integrated rate law for a first-order reaction is: Where: - is the initial concentration, - is the final concentration, - is the rate constant, - is the time.

2. Step 2: Substitute the values into the equation. We are given: Substituting into the rate law: Simplifying: Solving for : Thus, the rate constant is .