Question

Which are the factors favoured in the reaction kinetics in the NH3 oxidation stage?

(a) High temperature, low pressure

(b) Low temperature, high pressure

(c) Low temperature, low pressure

(d) High temperature, high pressure

This question was posed to me by my college director while I was bunking the class.

My question is based upon Inorganic Chemical topic in portion Inorganic Chemical Industries of Chemical Technology

Answer 1

The correct option is (d) High temperature, high pressure

Explanation: In ammonia oxidation process, the reaction to form NO is favoured by increasing temperature until an optimum is reached which increases with higher gas velocities. Increasing pressure favours physical absorption rates and shifts chemical equilibrium to produce higher acid strengths.