Question

Which of the following mathematical relations is correct?Select the proper choice from the given choices.
(A) For zero order (t₁/₂ * K);[R]₀/2
(B) For 0.5 order (t₁/₂* K))α√[R]₀
(C) For first order (t₁/₂* K)=0.693
(D) All the three relations given here are correct

Answer 1

i think C is correct

Answer 2

Dear Student,

◆ Answer -

(C) For first order reaction, t½.K = 0.693

● Explaination -

For first order reaction,

t½ = ln(2)/K

t½ = 0.693/K

t½.K = 0.693

# Extra formulas for first order reaction -

d[A]/dt = k.[A]

[A] = [A₀].e^(kt½)

t½ = ln(2)/k

* First order reaction, unit of rate constant is time⁻¹.

Thanks dear. Hope this helps you...