Home
Class 12
CHEMISTRY
The energy of activation for a reaction ...

The energy of activation for a reaction is 100 kJ/mol at `57^(@)C`. Presence of catalyst lower activation energy by 25%. The rate of reaction is increased by `10^(x)` the value of x is

Text Solution

Verified by Experts

The correct Answer is:
4
`(r_(2))/(r_(1))=(K_(2))/(K_(1))=(A.e^(-Ea_(2)//Rt))/(A.e^(-Ea_(1)//RT)),10^(x)=e^((-epsilona_(2)+epsilona_(2))/(RT))`
`2.303log_(10)10^(x)=(epsilon_(a_(1))-epsilon_(a_(2)))/(RT),2.303xx x=((100-75)xx10^(3))/(8.314xx330),x=(25xx1000)/(8.314xx330xx2.303)=3.95~=4`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise PRACTICE SHEET-4 (SINGLE OR MORE THAN ONE OPTION QUESTIONS)|16 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise PRACTICE SHEET-4 (LINKED COMPREHENSION TYPE QUESTIONS)|6 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise PRACTICE SHEET-3 (MATCH THE FOLLOWING QUESTIONS)|2 Videos

  • CHEMICAL KINETCS

    AAKASH SERIES|Exercise EXERCISE - 3.2|45 Videos

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise Additional Practice Exercise|54 Videos

Similar Questions

Explore conceptually related problems

The use of a catalyst in chemical reaction…activation energy of the reaction

The activation energy of a reaction can be determined by

A: A catalyst increases the rate of a reaction. R: In presence of a catalyst, the activation energy of the reaction increases.

Assertiojn (A):A catalyst increases that rate of a reaction . ReasonR): In the presence of a catalyst,the activation energy of the reaction increases.

The value of activation energy for a chemical reaction primarily depends on

The activation energy of a reaction is zero. The rate constant of the reaction:

(A) Presence of catalyst increases the rate of reaction (R ) Presence of catalyst increases the enthalpy of reaction

An increase in temperature by 10^(@) , can increase the number of collisions only by 2% , but the rate of reaction increases by 100%. Why?

A catalyst lowered the energy of activation by 25 kJ mol^(-1) .How many times , the rate reaction increases?