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Mechanical Engineering · Q35

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 35

Q35

The expression Q = ρ AT4 is called

A.
Fourier equation
B.
Stefan-Boltzmann equation
Answer
C.
Newton Reichmann equation
D.
Joseph-Stefan equation

Answer: Option B

Solution

Answer: Option B
Solution:
Stefan-Boltzmann law, statement that the total radiant heat power emitted from a surface is proportional to the fourth power of its absolute temperature. The expression Q = ρ AT4 is called Stefan-Boltzmann equation
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