The time for half life period of a certain reaction A → products is 1 hour. When the initial concentration of the reactant ' A ', is 2.0 mol L − 1 , how much time does it take for its concen

Question

The time for half life period of a certain reaction A → products is 1 hour. 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 to 0.25 mol L − 1 if it is a zero order reaction?

TestHub · Accepted Answer

For a zero order reaction k = t x ​ Where x = amount decomposed k = zero order rate constant for a zero order reaction k = 2 t 2 1 ​ ​ [ A ] 0 ​ ​ Since [ A 0 ​ ] = 2 M , t 1/2 ​ = 1 hr ; k = 1 ∴ from equation (1) t = 1 0.25 ​ = 0.25 hr

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