3549Chemical EngineeringMedium
For small temperature difference, the heat transfer rate as per Newton’s law of cooling is proportional to (where, Δt = excess temperature)?
AΔt2
BΔt3
CΔt
Correct answer
C. Δt
Explanation
The correct answer is Δt.
Correct answer
C. Δt
Explanation
The correct answer is Δt.
Which of the following can be calculated theoretically using steam table and Dalton’s law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known?
The ability of a material to offer resistance to scratching or indentation is a measure of its________?
Drying operation under vacuum is carried out to ________?
The commonly used solvent in supercritical extraction is________?
Addition of grog in fireclay brick during its manufacture is advantageous, because it results in________?
Optimum number of effects in a multiple effect evaporator is decided by the________?