第 1 題
1 分What is defined as the thermal energy required to change the temperature of \(1\text{ kg}\) of a material by \(1\text{ K}\)?
GCE O-Level · Physics (6091)
Specific heat capacity：練習題
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第 2 題
1 分Substance X has a higher specific heat capacity than substance Y. If equal masses of X and Y at the same initial temperature are supplied with the same amount of thermal energy, which of the following is true?
第 3 題
1 分A \(0.10\text{ kg}\) sample of water at \(80\text{ }^\circ\text{C}\) is mixed with \(0.20\text{ kg}\) of water at \(20\text{ }^\circ\text{C}\) in an insulated container. Assuming no heat is lost to the surroundings, what is the final equilibrium temperature of the mixture?
第 4 題
1 分What is the definition of the specific heat capacity of a substance?
第 5 題
1 分Two different liquids, X and Y, have equal mass. They are heated by two identical heaters. The picture shows how their temperatures vary with time. What can be deduced about their specific heat capacities?
第 6 題
2 分Calculate the thermal energy required to increase the temperature of a copper block of mass \(0.50 \text{ kg}\) from \(20 ^\circ\text{C}\) to \(80 ^\circ\text{C}\).
(Specific heat capacity of copper = \(390 \text{ J / (kg } ^\circ\text{C)}\))
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