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Gas Pressure
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| Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
|---|---|---|---|---|---|---|
| 9.4 | Gas Pressure |
Gas Pressure Revision Questions
1. The average surface area of an adult human body is about 1.7 m2. What is the total force exerted by air on adult humans in normal atmospheric conditions?
- 170 N
- 59 603 N
- 101 325 N
- 172 253 N
Correct Answer: D
2. What is the pressure of gas 2 in the composed manometer shown in the figure is air pressure is 73 cm - Hg? The capillary liquid used to separate the gases is mercury.
- 65 cm - Hg
- 69 cm - Hg
- 77 cm - Hg
- 80 cm - Hg
Correct Answer: C
3. The Bolivian national football team plays its home matches in the capital La Paz, which is 3640 m above the sea level. As a result, away teams have difficulty breathing in such conditions and their result are not good. For example in 2009, Bolivia won 6-1 against Argentina in an official home match.
How much percent lower is air pressure in the abovementioned conditions, compared to the normal atmospheric pressure?
- About 8.2 % lower
- About 17.9 % lower
- About 36.3 % lower
- About 63.7 % lower
Correct Answer: C
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- Check your calculations for Density and Pressure questions with our excellent Density and Pressure calculators which contain full equations and calculations clearly displayed line by line. See the Density and Pressure Calculators by iCalculator™ below.
- Continuing learning density and pressure - read our next physics tutorial: Buoyancy. Archimedes' Principle
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