Correct answer
D. Liquid film
Explanation
The correct answer is Liquid film.
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about ________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate?
Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is ________ percent?
(Le/D) for fully open gate valves would be ________?
A stirred tank reactor compared to tubular-flow reactor provides________?
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an ________ reaction?
Naphthalene is used for making________?