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Mechanical Engineering · Q13

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 13

Q13

Total heat is the heat required to

A.
Change vapour into liquid
B.
Change liquid into vapour
C.
Increase the temperature of a liquid or vapour
D.
Convert water into steam and superheat it
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Total Heat is the thermal equivalent of the energy required to convert unit mass of a liquid at one temperature (as the melting point of the substance) into saturated vapor at any other given temperature.