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Mechanical Engineering · Q100

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 100

Q100

Unit of thermal conductivity in M.K.S. units is

A.
K cal/kg m2 °C
B.
K cal m/hr m2 °C
Answer
C.
K cal/hr m2 °C
D.
K calm/hr °C

Answer: Option B

Solution

Answer: Option B
Solution:
Thermal Conductivity is the quantity of heat that passes in unit time through unit area of a substance whose thickness is unity, when its opposite faces differ in temperature by one degree.
Unit of thermal conductivity in M.K.S. units is K cal m/hr m2 °C.
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