3451Chemical EngineeringMedium
Enthalpy of formation of NH3 is – 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH3 → N2 + 3H2, is equal to ________ kJ/kg. mole?
A92
B-23
C46
Correct answer
A. 92
Explanation
The correct answer is 92.
Correct answer
A. 92
Explanation
The correct answer is 92.
In shell and tube heat exchangers, straight tie rods are used to________?
It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is________?
(Le/D) for fully open globe value may be around________?
The enthalpy change when ammonia gas is dissolved in water is called the heat of________?
For the liquid phase parallel reactions________?
The largest stable nucleus is ________?