In which of the following are the substances arranged in descending order of their thermal conductivities?
aluminum, copper, iron
aluminum, iron, copper
copper, aluminum, iron
copper, iron. aluminum
iron, copper, aluminum
Correct answer is C
metals thermal conductivity( W/mk)
IRON 65.7
COPPER 377
ALUMINIUM 218
THERMAL CONDUCTIVITIES OF Al, Fe, and Cu at 100degree Celsius