Thermodynamics
4C - Change of State
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4C 30.10 - Boiling Point of H2O at Reduced Pressure:
Demonstrates: Boiling point changes as pressure changes. Description: Steam is captured in a condensation flask. A vacuum hand pump causes a decrease in temperature that correlates to the reduced pressure. |
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4C 31.30 - Drinking Birds:
Demonstrates: Vapor pressure changes due to temperature changes. Description: Birds "drink" as temperature changes cause liquid to fill the evacuated space. |
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4C 32.10 - Relative Humidity:
Demonstrates: Affect of humidity on pressure. Description: Two versions are available. Dew point method creates condensation on the outside of a steel beaker. The wet bulb method measures the temperature of humidified air. |
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4C 33.50 - Franklin's Palm Glass:
Demonstrates: Change of State. Description: When one bulb is held in your hand body heat causes the volatile liquid inside to boil. |
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4C 50.10 - Thermal Models:
Demonstrates: Pressure, temperature and volume. Description: A three dimension graph for H2O and CO2. |