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Science Virtual Learning
MPI Physics 210Thermodynamics 4: Thermal Expansion of
LiquidsMay 12, 2020
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Lesson: MPI Thermodynamics 4 – Thermal Expansion of
Liquids
May 12, 2020
Objective: To understand how liquids expand with
temperature
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Video: Thermal Expansion of Liquids
This video discusses how liquids expand when their temperature is raised, and works through 2 examples.
https://youtu.be/VxAeBN6_xfM
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Coefficients of Expansion
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Expansion of Liquids –Example 1
A swimming pool has dimensions 10.0 m by 6.00 m by 3.00 m. In the morning, when the temperature is 8.0 °C, it is filled to the top with water. Later in the day, the water heats to 22.0 °C. How much water spills out of the pool? (Ignore the much smaller expansion of the pool itself.)
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Expansion of Liquids –Example 2
A 20.0 L (5 gallon) aluminum gasoline can is completely filled with gasoline on a cold day, at -3.0 °C. The can is left in the garage, where it later heats up to 26.0 °C.
a) How much does the volume of the gasoline expand?
b) How much does the volume of the aluminum can expand?
c) Does any gas spill out? If so, how much?
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Homework 1
• Try to solve the problem yourself, then watch the solution video:
• https://youtu.be/Oyp49t-KbP4
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Homework 2
• Try to solve the problem yourself, then watch the solution video:
• https://youtu.be/9Rr-XIbqb3M
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That’s it!