Comparing Temperature and Volume
The temperature and volume of a gas are closely related. In this task, you’ll observe how
changing the air temperature inside an empty water bottle aàects its volume. To do this,
you’l
...
Comparing Temperature and Volume
The temperature and volume of a gas are closely related. In this task, you’ll observe how
changing the air temperature inside an empty water bottle aàects its volume. To do this,
you’ll immerse the water bottle in hot water and cold water and compare the volume of hot
air to the volume of cold air inside the bottle.
Estimated time to complete: 2 hours
If you’ve purchased an Edmentum lab kit, remove the thermometer and graduated cylinder
from the bag labeled Common Materials. These materials are italicized in the following
equipment list. Then gather any additional items shown in the list. If you’re not using an
Edmentum lab kit, alternatives are suggested in parentheses.
You’ll need these materials:
thermometer, readable from 0°C to 100°C (32°F to 212°F)
graduated cylinder (may also use kitchen measures: cup, tablespoon, teaspoon, ½
teaspoon)
disposable plastic water bottle with cap (10-ounce capacity preferred), or similar
transparent bottle with a tight-Õtting cap
two large bowls or pots, large enough to completely contain the water bottle
hot and cold tap water
ice
stopwatch (may also use a timer or a clock)
Stay safe! Be careful when handling hot water to avoid burns.
Part A
Write a hypothesis about what will happen to the air in the plastic bottle when its
temperature is decreased. What relationship do you expect to Õnd between temperature
and volume?4/11/2021 Task: Comparing Temperature and Volume
https://f1.app.edmentum.com/courseware-delivery/ua/48778863/45422831/aHR0cHM6Ly9mMS5hcHAuZWRtZW50dW0uY29tL2xlYXJuZXItdWkvdX… 2/12
Answer:
I think the temperature and volume will either lead to a decrease or an increase in pressure.
Characters used: 93 / 15000
Part B
It’s time to get started. Fill the plastic bottle to the brim with water. Then pour the water into
a graduated cylinder or other measuring tool to measure the total capacity of the bottle.
Note that you may need to Õll the measuring tool multiple times. To recall how to use a
graduated cylinder, watch this video on measuring volume before continuing.
If you are using household measuring tools, use these conversions to record the exact
capacity of the bottle in milliliters (mL). Visit the math review for help with converting units:
1 cup = 240 mL
1 tablespoon = 15 mL
1 teaspoon = 5 mL
What is the capacity of the bottle in milliliters?
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