The heat Q transferred (to cause a temperature change) depends on the magnitude of the temperature change, the mass of the system, and the substance and phase involved, and is defined by:
where
Q = heat energy
m = mass of a substance
c = specific heat
∆T = change in temperature
Solution:
For the specific heat of copper: 0.390 J/g °C
Given m = 2.0 kg = 2000 g; and ∆T = 10°C - 110°C
The heat transferred is negative because of the change of temperature (from hot to cold) implying that a flow of heat is "out" of the object (or system).
Answers & Comments
Hint:
The heat Q transferred (to cause a temperature change) depends on the magnitude of the temperature change, the mass of the system, and the substance and phase involved, and is defined by:
where
Q = heat energy
m = mass of a substance
c = specific heat
∆T = change in temperature
Solution:
For the specific heat of copper: 0.390 J/g °C
Given m = 2.0 kg = 2000 g; and ∆T = 10°C - 110°C
The heat transferred is negative because of the change of temperature (from hot to cold) implying that a flow of heat is "out" of the object (or system).