A first order reaction is 50% complete in 20 minutes. What is its rate constant?

A first order reaction is 20% complete in 10 minutes. What is the specific rate constant for the reaction?

A first order reaction is 20% complete in 10 minutes. What is the specific rate constant for the reaction?

If 40% of a first order reaction is complete in 20 minutes, find the rate constant.

A first order reactin is 15% complete in 20 minutes. Its rate constant is :

A first order reaction is 50 % completed in 30 minutes . The rate constant of the reaction is

A first order reaction is 50% complete in 10 minutes The rate constant of the reaction is

A first - order reaction is 20% complete in 10 minutes. Calculate the rate constant of the reaction.