Correct answer
D. None of these
Explanation
The correct answer is None of these.
N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (Molecular weight of urea = 60)?
Maximum consumption of zinc is in________?
The average velocity in the tubes of a 1-4 heat exchanger is ________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate?
Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is________?
Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are?
Bimetal strips are not used in________?