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

Which of the following acts as a catalyst in Haber’s process

A
Finely divided iron with molybdenum as a promoter
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Finely divided Nickel and soda lime deposited over pumice stone
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Finely divided Osmium or Uranium
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
All of the above
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D All of the above
Once the pure reagents of dinitrogen and dihydrogen gas are obtained, the following simple reaction can give ammonia:
N2(g)+3H2(g)2NH3(g)

According to Le Chatelier’s principle, to favour the forward reaction, high pressures and lower temperatures are required. But the use high pressures, escalates the construction costs of the plant. Also, at lower temperature, although the yield of ammonia is more yet the reaction is very slow kinetically. In order to speed up the reaction, catalysts are used. Options A B & C are all well-known catalysts which are/were used in ammonia plants. Promoter (Molybdenum) is any component added to a catalyst to increase activity or selectivity.
While using catalysts, there is a trade-off between the kinetics and the equilibrium of the reaction. With modern high-performance catalysts, the optimum conditions are 400C - 500C. One of the most significant catalysts is finely divided iron containing traces of potassium, aluminum, calcium, magnesium, silicon, and oxygen.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Hydrides of Nitrogen - Ammonia and Hydrazine
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon