Chapter 18 Daltons Law of Partial Pressures We
- Slides: 16
Chapter 18 Dalton’s Law of Partial Pressures
We all live in the ocean of air, called the atmosphere.
Barometers and Standard Atmospheric Pressure
Barometers and Standard Atmospheric Pressure • Standard atmospheric pressure defined as the pressure sufficient to support a mercury column of 760 mm high. (units of mm. Hg, or torr). • Another unit was introduced to simplify things, the atmosphere (1 atm = 760 mm. Hg). • 1 atm = 760 mm. Hg = 760 torr = 101. 3 k. Pa.
STP standard temperature and pressure Standard temperature 0°C or 273 K Standard pressure 1 atm (or equivalent)
Dalton’s Law of Partial Pressure • The total pressure of a mixture of gases is the sum of the partial pressures of all the gases in the container. • The contribution each gas makes to the total pressure of a mixture of gases is known as the partial pressure of that gas. A 550 k. Pa • Ptotal = PA + PB + PC • Ptotal = 100 k. Pa + 250 k. Pa + 200 k. Pa = 550 k. Pa
Turn to the “Dalton’s Law of Partial Pressures” sheet in your notebook.
Air is composed primarily of four gases: nitrogen (593. 4 torr), argon (7. 098 torr), carbon dioxide (0. 2508 torr), and oxygen. What is the partial pressure of oxygen at standard atmospheric pressure? • 593. 4 torr + 7. 098 torr + 0. 2508 torr = 600. 7488 torr ≈ 600. 7 torr • 760 torr – 600. 7 torr = 159. 3 torr ≈ 159 torr
Air is composed primarily of four gases: nitrogen (593. 4 torr), argon (7. 098 torr), carbon dioxide (0. 2508 torr), and oxygen. What percent of air is nitrogen? 593. 4 torr 760 torr x 100 = 78. 1%
Air is composed primarily of four gases: nitrogen (593. 4 torr), argon (7. 098 torr), carbon dioxide (0. 2508 torr), and oxygen. What is the partial pressure in k. Pa of argon gas at standard atmospheric pressure? 7. 098 torr
Air is composed primarily of four gases: nitrogen (593. 4 torr), argon (7. 098 torr), carbon dioxide (0. 2508 torr), and oxygen. What is the partial pressure in k. Pa of argon gas at standard atmospheric pressure? 7. 098 torr 101. 3 k. Pa 760 torr = 0. 946 k. Pa
What would be the partial pressure of oxygen on top of a high mountain where the air pressure is only 534 mm Hg? Remember from the first problem that the partial pressure of oxygen in air is 159 torr 760 torr = X 534 torr x = 112 torr
What percent less oxygen is dissolved into the blood on top of the mountain as compared to sea level? 112 torr 159 torr x 100 = 70. 4% 100 – 70. 4 = 29. 6% less
Mount Everest
Endurance Training
Homework Dalton’s Law of Partial Pressures and Ideal Gases Worksheet
- Cost pressures and pressures for local responsiveness
- Finding partial pressure
- Two flasks are connected with a stopcock
- Daltons gas law
- Gibbs free energy chart
- Partial pressures of gases pogil answers
- Efnisheimurinn svör kafli 2
- Dalton atomic theory
- Daltons experiment
- Chapter 18 handling social pressures
- 410a pressure chart
- Heart chamber pressures
- Pronatalist pressures are influences that lead people to
- Paul trott
- College pressures william zinsser
- A regulator diaphragm is often made from ____
- Responding to economic pressures