The Amount of Thermal Energy That Flows in One Minute $k = 395$

Multiple Choice

The amount of thermal energy that flows in one minute through a copper brick, $k = 395$ W/(m.K) , that has cross-sectional area = 20 cm $2$ length = 10 cm, and temperature difference across the ends of 15ºC is

A) 119 J.
B) 512 J.
C) 7.1 kJ.
D) 1.9 kJ.