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Standard X
Chemistry
Chemical Reaction
for the react...
Question
for the reaction the energy of activation is 75KJ/mol. when the energy of activation of a catalyst is lowered to 20KJ/mol. what is the effect of a catalyst on the rate of reaction at 200C.
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Similar questions
Q.
For a given reaction, energy of activation for forward reaction
(
E
a
f
)
is
80
k
J
/
m
o
l
.
Δ
H
=
−
40
k
J
/
m
o
l
for the reaction. A catalyst lowers
E
a
f
to
20
k
J
/
m
o
l
. The ratio of energy of activation for reverse reaction before and after addition of catalyst is:
Q.
Activation energy of a reaction is 100 kJ/mol. By using a catalyst
E
a
decreases by 75%. What will be the effect on rate of reaction at
20
0
C
?
Consider all other things are equal.
Q.
The activation energy of the reaction is
75
k
J
/
m
o
l
in absence of a catalyst and it lowers to
50.14
k
J
/
m
o
l
with a catalyst. How many times will the rate of reaction grow in presence of a catalyst if the reaction proceeds at
25
∘
C
?
Q.
A hydrogenation reaction is carried out at 500 K. If the same reaction is carried out in the presence of a catalyst at the same rate, the temperature required is 400 K. Calculate the activation energy of the catalysed reaction if the catalyst lowers the activation energy barrier by 20 kJ/mol.
Q.
The energy of activation for a reaction is
100
k
J
m
o
l
−
1
. Presence of a catalyst lowers the energy of activation by
75
%. What will be the effect on rate of reaction at
20
o
C
, other things being equal?
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