Question

if the slope pf a line of graph between time (in hour) and concentration of product formed for zero order reaction is 0.2 then the initial concentration of the reaction if after 30 min its concentration is 0.05 mol/L

Answer 1

Given info : if the slope pf a line of graph between time (in hour) and concentration of product formed for zero order reaction is 0.2.

To find : the initial concentration of the reaction if after 30 min its concentration is 0.05 mol/L, is...

solution : we know, the slope of concentration time graph is known as rate of reaction.

i.e., -d[A]/dt = 0.2 M/hr

∫d[A] = -0.2 ∫dt

⇒[A] - [A]₀ = -0.2t

as given, [A] = 0.05 mol/L , t = 30 min = 1/2 hr

now, 0.05 - [A]₀ = -0.2 × 1/2 = -0.1

⇒[A]₀ = 0.15 mol/L

Therefore the initial concentration of the reaction is 0.15 mol/L.

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Answer 2

Answer:

see solution

in given image