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I
A container that acts as a perfect insulator contains two compartments, one containing hot gas and the other cool gas as illustrated in the diagram below. The wall separating the two
1
gases contains a heat conducting material that allows heat to pass from the hot gas to the cool gas.XO OXO OXO OXO OXO OXO O
1
1
hot gas
FENN FENNEEN
cool gas
perfect
insulator
erial.
The graph below describes the flow of heat through the heat conducting material.
heat
energy
(kJ) 8.0
NC
6.0
4.0
1
2.0
1
0.0
I
0.0 2.0 4.0 6.0 8.0 time (s)
14
1
a) What is the rate of heat transfer that occurs in the first 2 seconds.
b) How many seconds does it take for thermal equilibrium to occur.
The heat conductor has a cross sectional area of 2.00 m² and a thickness of 20.0 cm.
103000:
1
At the 1.0 second mark, the temperature of the hot gas is 350.0 K and the temperature of the cool gas is 300.0 K.
c) What is the thermal conductivity of the new heat conducting material?
heat
conductor
OKROVO
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