The value of Prandtl number for air is about _______________________?
A. 0.1
B. 0.3
C. 0.7
D. 1.7
E. 10.5
The value of Prandtl number for air is about _______________________?
A. 0.1
B. 0.3
C. 0.7
D. 1.7
E. 10.5