Consider the following reactions at 300 ...

Consider the following reactions at 300 K.
A `rarr` B (uncatalysed reaction)
`Aoverset("catalyst")rarrB` (catalyst reaction)
The activation energy is lowered by `8.314"KJ mol"^(-1)` for the catalysed reaction. How many times the rate of this catalysed reaction greater than that of uncatalysed reaction?(Given `e^(3.33)=20)`

15 times

38 times

22 times

28 times

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

CHEMICAL KINETICS
GRB PUBLICATION|Exercise Mechanism of Reactions|45 Videos
CHEMICAL KINETICS
GRB PUBLICATION|Exercise compllcatio in first order reactions|17 Videos
CHEMICAL KINETICS
GRB PUBLICATION|Exercise E. Methods to Monitor the Progress of Reaction|43 Videos
CHEMICAL BONDING-I
GRB PUBLICATION|Exercise Subjective Type|120 Videos
COORDINATION COMPOUNDS
GRB PUBLICATION|Exercise SBJECTIVE TYPE|98 Videos

Similar Questions

Explore conceptually related problems

Conisder the following reaction at 300 K : Ararr B (uncatalyzed reaction) ArarrB (catalyzed reaction) The activation energy is lowered by 8.314 kJ mol^(-1) for the catalyzed reaction. The rate of this reaction is

The rate of catalysed reaction is large than the uncatalysed reaction as ___

The enzyme catalysed reaction is faster than metal catalysed reaction because its activation energy is

The activation energy of a first order reaction at 300 K is 60 kJ "mol"^(-1) . In the presence of a catalyst, the activation energy is lowered to 50 kJ "mol"^(-1) at the same teperature. How many times the rate of reaction will change ?

The activation energy for an uncatalysed reaction is less than that for a catalysed reaction. What do you conclude from the above statement ?

A catalyst lowers the activation energy of a reaction form 20 kJ mol^(-1) to kJ mol^(-1) . The temperature at which the uncatalyzed reaction will have the same rate as that of the catalyzed at 27^(@)C is

GRB PUBLICATION-CHEMICAL KINETICS-F. Effect of Temperature and Catalyst

Which of the following statement is correct regarding enthalpy of reac...
Text Solution
|
For a reaction XrarrY, heat of reaction is + a kJ, potential energy of...
Text Solution
|
Consider the following reactions at 300 K. A rarr B (uncatalysed rea...
Text Solution
|
If it known that out every 5 collisions, 1 has appropriate orientation...
Text Solution
|
For a simple reaction A to B it is observed that % of activated molecu...
Text Solution
|
Identify the statement which is correct from the following
Text Solution
|
The rate of a catalysed reaction at 27^(@)C is e^(2) times the rate of...
Text Solution
|
The desorption of gas molecules from the adsorbent surface obeys Arrhe...
Text Solution
|
Temperature coefficient of a reaction at 300 K is 2. Neglected variati...
Text Solution
|
Reaction -1:A to C " " k(1)=10^(10) e^(-500//T) Reactions -2: BtoD...
Text Solution
|
The role of catalyst is to change:
Text Solution
|
A first order reaction is catalysed by a catalyst which decreases acti...
Text Solution
|
For two reactions: R-I and R-II the rate constants at 300 K and 320 K ...
Text Solution
|
For a first order reaction rate is given by , R=K[Reactant] where K=a....
Text Solution
|
The energies of activation forward and revers reaction for A(2)+B(2)to...
Text Solution
|
For an elementary reaction the variation of rate constant (k) with tem...
Text Solution
|
If it known that 1 out of every 4 collisions has appropriate orientati...
Text Solution
|
In the respect of the equation k=Ae^(-E(a)//RT) is chemical kinetics, ...
Text Solution
|
The variation of rate constant with temperature forllow sthe equations...
Text Solution
|
For a certain gaseous reactions a 10^(@)C rise of temp, from 25^(@)C t...
Text Solution
|