Question

A reaction is of first order .After 100 minutes 75gm of the reactant A decomposed when 100gm are taken initially, calculate the time required when 150gm of the reactant A are decomposed the initial weight taken 200 gm.
A. 100 min
B. 200min C. 150min
D. 175min And answer is option A Please provide full solution

Answer 1

Answer:

100m,75g in 100g

2×100m,2×75g in 2×100g

200m,150g in 200g.

so 200m. 150g of the reactant A decomposed when 200g are taken initially.