A substance with initial concentration 'a' follows zero order kinetics. In how much time will the reaction go to completion?

A substance (initial concentration a) reacts according to zero-order kinetics. The time it takes for the completion of the reaction is

The half-life for the thermal decomposition of acetone 80s_and is independent of initial concentration of acetone. The time required for the reaction to go to 80% decomposition is

The time for half-life period of a certain reaction A rarr Products is 1 h. When the initial concentration of the reactant A, is 2.0 mol L^(-1) . How much time does it take for its concentration to come from 0.50 mol L^(-1) to 0.25 mol L^(-1) , if it is a zero-order reaction?

A first order reaction is carried out starting with 10 mol l^(-1) of the reactant. It is 40% complete in 1h if the same reaction is carried out with an initial concentration of 5 mol l^(-1) the percentage of the reaction that is completed in 1h will be

Unit of rate constant for zero order reaction is

A first order reaction is 20% complete in ten minutes. Calculate time taken for the reaction to go upto 75% completion.