wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

N2(g)+3H2(g)2NH3(g);ΔH=22kcal
Activation energy, Ea for the given reaction is 70 kcal. Find the activation energy for 2NH3(g)N2(g)+3H2(g) in kcal.

A
42
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
64
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
92
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
85
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 92
The given reaction is an exothermic reaction since ΔH=ve
EaF =Activation energy of the forward reaction
EaB= Activation energy of the backward reaction

Enthalpy change can be expressed also in terms of activation energy,

ΔH=EaFEaB
22=70EaB
EaB=92kcal

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Collision Theory
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon