If the rate constant for the decomposition reaction of cyclobutane into ethylene is 2.08 x 10^-2 s^-1 at a certain temperature, how many seconds are required for the initial concentration (3.25) to decrease to 1.95?

If the rate constant for the decomposition reaction of cyclobutane into ethylene is 2.08102s1 at a certain temperature, how many seconds are required for the initial concentration (3.25) to decrease to 1.95? (Hint: What is the rate order based on k's units?) Your Answer: Answer units