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Mechanical Engineering · Q39

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 39

Q39

Heat transfer takes place as per

A.
Zeroth law of thermodynamics
B.
First law of thermodynamic
C.
Second law of the thermodynamics
Answer
D.
Kirchoff's law

Answer: Option C

Solution

Answer: Option C
Solution:
Heat transfer takes place as per Second law of the thermodynamics it states that Heat transfer occurs spontaneously from higher- to lower-temperature bodies but never spontaneously in the reverse direction. The law states that it is impossible for any process to have as its sole result heat transfer from a cooler to a hotter object.