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Mechanical Engineering · Q45

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 45

Q45

The heat transfer from a hot body to a cold body is directly proportional to the surface area and difference of temperatures between the two bodies. This statement is called

A.
First law of thermodynamics
B.
Newton's law of cooling
Answer
C.
Newton's law of heating
D.
Stefan's law

Answer: Option B

Solution

Answer: Option B
Solution:
The heat transfer from a hot body to a cold body is directly proportional to the surface area and difference of temperatures between the two bodies. This statement is called Newton's law of cooling