Question

For the zero order reaction A-B+C.If initial concentration of A is 0.1M.if[A]=0.08after 10 minutes,then it's half life and completion time are respectively.

Answer 1

Answer: half life = 25 Min

Completion time = 50 Min

Explanation:

Zero order eqn: a* - a = Kt

a*=0.1 (initial concentration)

a=0.08(after 10 min concentration)

Then

0.1 - 0.08 =K×10 min

K= 2×10^-3 mol litre^-1

t_{(1)/(2)}

0.1 -0.05 = K t_{(1)/(2)}

t_{(1)/(2)}=25 min

Completion

0.1- 0 = K t

t= 50 min