Pick out the correct equation ?
Correct answer: A. jH = (St)(Pr)2/3 = f/2
- A. jH = (St)(Pr)2/3 = f/2
- B. jH = (St)(Pr)1/3 = f/2
- C. jH = (St)2/3(Pr) = f/2
- D. jH = (St)1/3(Pr) = f/2
Explanation
The Colburn analogy defines jH = St Pr^(2/3), and for the usual analogy it equals f/2. Thus the exponent belongs on the Prandtl number, not on the Stanton number.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Heat Transfer Operations
645 free Heat Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Heat Transfer Operations questions
Pick out the wrong statement pertaining to a shell and tube heat exchanger ?
Pick out the wrong unit conversion of heat transfer rate?
Pick out the wrong unit conversion of thermal conductivity ?
Choose the correct equation ?
A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides __________________?
For evaporation of viscous solution in a multiple effect evaporator, the preferred feeding scheme is _________________?