The rate constant of a reaction A → B is 0.6 × 103 mole per second. If the concentration of [A] is 5 M, then what will be concentration of [B] after 20 months? (a) 0.36 M (b) 0.72 M (c) 1.08 M (d) 3.60 M

The rate constant of a reaction A → B is 0.6 × 103 mole per second.

1.	The rate constant of a reaction A → B is 0.6 × 103 mole per second. If the concentration of [A] is 5 M, then what will be concentration of [B] after 20 months? (a) 0.36 M (b) 0.72 M (c) 1.08 M (d) 3.60 M
Answer» ER Answer:(b) 0.72 MExplanation:Reaction's order will be zero and RATE constant's unit is MOLE per second.K = [ A ]0 - [ A ] / t0.6 × 10 ^–3 = 5 - [ A ] / 20 X 60[ A ] = 5 - 0.72Conc. of B after 20 MINUTES will be 0.72 M.