Tutorial 4-Thermal Energy
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Transcript of Tutorial 4-Thermal Energy
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TUTORIAL 4 [unit 5 – physics FRom creation to collapse – 5.1 thermal energy] 1
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TUTORIAL 4 [unit 5 – physics FRom creation to collapse – 5.1 thermal energy] 2
1. Describe how the pressure that gas molecules exert on the walls of a container changes when the temperature of the gas increases. Explain your answer.
2. A cylinder has a fixed volume of 1.36 x 10-3 m3 and contains a gas at a pressure of 1.04 x 105 Pa when the temperature is 15°C.
a. Calculate the number of gas molecules in the container.b. Calculate the new pressure of the gas when the
temperature is increased to 25°C.c. Calculate the increase in kinetic energy of all the gas
molecules in the container caused when the temperature is increased to 25°C.
3.
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TUTORIAL 4 [unit 5 – physics FRom creation to collapse – 5.1 thermal energy] 3
ANSWERS
Obj1D 2C 3B 4A1
2a
2b
2c
3a n b
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TUTORIAL 4 [unit 5 – physics FRom creation to collapse – 5.1 thermal energy] 4