2.2.2. Specific heat capacity
A subsection of Physics, 5054, through 2. Thermal physics
Listing 10 of 60 questions
shows the particles in a sample of liquid water. Explain, using ideas about particles, why liquids expand more than solids for the same temperature rise. The boiling point of water is 100 °C. State the boiling point of water on the Kelvin scale of temperature. boiling point = K The temperature remains constant as water turns from liquid to gas at the boiling point. Explain, in terms of particles, why energy must be provided even though the temperature stays constant. An electric heater is used to heat a sample of metal, as shown in . There is no thermal energy transferred from the metal to the surroundings during the heating. thermometer electric heater sample of metal The metal has a mass of 200 g and is initially at 15 °C. The heater is switched on for 2.0 minutes and then switched off. The maximum temperature reached by the metal is 40 °C. The power of the heater is 20 W. Calculate the specific heat capacity of the metal. Show your working. specific heat capacity = J /(g °C)
5054_s23_qp_21
THEORY
2023
Paper 2, Variant 1
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Questions Discovered
60