Lab 4.1 Having Fun With Air Pressure

1. A becrease in pressure causes the volume of a balloon to increase.
2. Adding more pressure increases the pressure in that bottle.
3. As the volume of a cylinder in increased, the pressure will decrease.
4. Inreasing the pressure in a tire by adding more gas will cause the volume to increase.
5. As the temperature of a closed container of water in increased, the amount of water vapor above the water causes an increase in vapor pressure.
6. As the air pressure of a liquid is increased by adding more air, the boiling point of the liquid will decrease.
7. If a balloon filled with air is taken under water to a depth of ten feet, its volume will decrease.
8. The temperature of a beaker of boiling water will increase as more heat is added.
9. Hot air rises because it is less dense than the cold air around it.
10. When heated, the volume occupied by air in the balloon will increase.
11. The lowest possible achievable temperature in -273 degrees celcius, which is also expressed as 0 degrees kelvin.
12. .88 atm.
13. 130 degrees kelvin is 403 degrees celcius.

Enrichment: The collapse of the tanker car shown in the picture can be explained quite simply. When the men cleaned its interior with hot water, they made the mistake of sealing it. Inside the tanker car, the air particles were mowing very quickly due to the high temperature. As the temperature on the outside of the tanker cooled, so did the temperature on the inside of the tanker. This caused the particle motion isnide the tanker to decrease, lowering the pressure. As the air may have warmer up some throughout the night, the pressure on the outside of the tanker car was greater than the pressure on the inside of it, thus causing it to collapse upon itself.