In which of the following are the substances arranged in descending order of their thermal conductivities?
A
aluminium, copper, iron
B
aluminium, iron, copper
C
copper, aluminium, iron
D
copper, iron. aluminium
E
iron, copper, aluminium
Verified Correct Answer: C.
Physical Principles & Numerical Solution
metals thermal conductivity( W/mk)
IRON 65.7
COPPER 377
ALUMINIUM 218
THERMAL CONDUCTIVITIES OF Al, Fe, and Cu at 100degree Celsius
Source: Myschool Past Questions Archive (Record #42870)