Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of

Q. Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of
A. 0.002
B. 0.02
C. 0.01
D. 0.1
Answer: 0.02

A. 0.002
B. 0.02
C. 0.01
D. 0.1
Answer: 0.02