Home
Class 12
CHEMISTRY
If a reaction A+BrarrC is exothermic to ...

If a reaction `A+BrarrC` is exothermic to the extent of `30 KJ mol^(-1)`, the the forward reaction has an activation energy , `70KJ mol^(-1)`, the activation energy for the reverse reaction is

A

`30kJ//mol`

B

`40kJ//mol`

C

`70kJ//mol`

D

`100kJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
D

Activation energy for backward reaction `=100kJ`
Promotional Banner

Similar Questions

Explore conceptually related problems

A colliison between reactant molecules must occur with a certain minimum energy before it is effective in yielding Product molecules. This minimum energy is called activation energy E_(a) Large the value of activation energy, smaller the value of rate constant k . Larger is the value of activation energy, greater is the effect of temperature rise on rate constant k . E_(f) = Activation energy of forward reaction E_(b) = Activation energy of backward reaction Delta H = E_(f) - E_(b) E_(f) = threshold energy If a reaction A + B rarr C is exothermic to the extent 30 kJ mol^(-1) and the forward reaction has an activation energy of 249 kJ mol^(-1) the activation energy for reverse reaction in kJ mol^(-1) is

The activation energy for the forward reaction X rarr Y is 60 kJ mol^(-1) and Delta H is -20 kJ mol^(-1) . The activation energy for the reverse reaction is

In an exothermic reaction X rarr Y , the activation energy is 100 kJ mol^(-1) of X . The enthalphy of the reaction is -140 kJ mol^(-1) . The activation energy of the reverse reaction Y rarr X is

A reaction having equal energies of activation for forward and reverse reactions has

A reaction having equal energies of activation for forward and reverse reactions has

For an exothermic reaction ArarrB , the activation energy is 65kJmol^(-1) and enthalpy of reaction is 42kJmol^(-1) . The activation energy for the reaction BrarrA will be:

An exothermic reaction XrarrY has an activation energy of 90kJ mol^(-1) of X and the heat of reaction is 250 kJ . Find the activation energy of the reaction YrarrX .

The activation energy of exothermic reaction ArarrB is 80 kJ "mol"^(-1) . The heat of reaction is 200 kJ "mol"^(-1) . The activation energy for the reaction Brarra ( in kJ/mol) will be :

An exothermic reaction, A rarr B , has an activation energy of "15 kcal mol"^(-1) and the energy of reaction is "5 kcal mol"^(-1) . The activation energy in "kcal mol"^(-1) for the reaction, BrarrA is

in a reversible reaction the energy of activation of the forward reaction is 50 kcal . the energy of activation for the reverse reaction will be