v. Obtain the relationship between |
rate constant and half life of a first
order reaction.
Answers
Answered by
2
Answer:
The rate constant(k) of first order reaction is k=
t
1
ln
(a−x)
α
where a is moles per litre of the reactant initially and after time t suppose x moles per litre of it is decomposed.
Half-life(t
1/2
) is defined as the time taken for the quantity to reduce to its half value.
Here x=
2
a
, thus from the above equation.
t
1/2
=
k
1
ln
(a−
2
a
)
a
=
k
1
ln
a
2a
=
k
1
l
n
2
t
1/2
=
k
l
n
2
=
k
0.693
t
1/2
=
k
0.693
.
HOPE ITS HELP YOU...
Similar questions