Home
Class 12
CHEMISTRY
If for two reaction E(a(1)) gt E(a(2)) a...

If for two reaction `E_(a_(1)) gt E_(a_(2))` and `TC_(1)` and `TC_(2)` are temperature coefficient respectively, then which alternative is correct?

A

`TC_(1) gt TC_(2)`

B

`TC_(1) lt TC_(2)`

C

`TC_(1) = TC_(2)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
a
Temperature coefficient,
`(K'_(1))/K_(1)=E_(a)/(2.303R)[(T_(2)-T_(1))/(T_(1)T_(2))]`
`:. TC_(1)=E_(a_(1))/(2.303R)[(T_(2)-T_(1))/(T_(1)T_(2))]`
`TC_(2)=E_(a_(2))/(2.303R)[(T_(2)-T_(1))/(T_(1)T_(2))]`
`(TC_(1))/(TC_(2))=E_(a_(1))/E_(a_(2))`
If `E_(a_(1)) gt E_(a_(2))` then `TC_(1) gt TC_(2)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    P BAHADUR|Exercise Exercise 1|2 Videos

  • CHEMICAL KINETICS

    P BAHADUR|Exercise Exercise 3A|2 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos

Similar Questions

Explore conceptually related problems

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C . The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. Which represents the correct value, if catalyst is not present?

The activation energies of two reactions are E_(a1) and E_(a2) with E_(a1) gt E_(a2) . If the temperature of the reacting systems is increased from T to T' , which of the following is correct?

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C . The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. The observed Arrhenius parameter for the reaction is:

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C . The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. Presence of a catalyst decreases the energy of activation of each path by half the value of E_(1) . Assuming the order actors same, the observed energy of activation would be:

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C . The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. If temperature coefficient of the observed reaction is 2 , the numerical value of E_(1)-E_(2)+2E_(3) is:

A certain endothermic reaction: Ararr Product, DeltaH=+ve proceeds in a sequence of three elementary steps with the rate constants K_(1), K_(2) and K_(3) and each one having energy of activation E_(a), E_(2) and E_(3) respectively at 25^(@)C . The observed rate constant for the reaction is equal to K_(3) sqrt(K_(1)/K_(2)). A_(1), A_(2) and A_(3) are Arrhenius parameters respectively. The observed energy of activation for the reaction is: