3 behavior of gases
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This document discusses key concepts relating to the behavior of gases, including the definitions of pressure and how it relates to force and area. It describes how pressure decreases with increasing altitude due to lower atmospheric pressure. Boyle's Law and Charles' Law are also summarized, with Boyle's Law stating that gas pressure increases as volume decreases if temperature remains constant, while Charles' Law indicates that gas temperature increases as volume increases if pressure remains constant. Charles' Law is used to calculate the temperature at which gas volume would reach absolute zero.
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3 behavior of gases
- 2. Pressure Pressure - the amount of force exerted per unit of area.
- 3. Formula for Pressure P = F / A Pressure = Force / Area Atmosphere puts a pressure on everything within it.
- 4. Pressure vs. Altitude As altitude increases the pressure decrease. (As altitude ↑, pressure ↓)
- 5. Boyle’s Law Boyle’s Law- as volume of a gas decreases, the pressure increases. (As volume ↓, pressure ↑) Temperature must be the same.
- 6. Boyle’s Law Balloon in a small box.
- 7. Charles’s Law Charles’s Law- As volume of a gas increases, the temperature increases.
- 8. (As volume ↑, temperature ↑) Pressure must be the same (If volume ↓, then temp. ↓)
- 9. Charles’s Law Ex: Ex: Hot-Air Balloon
- 10. By using this, Charles’s calculate the temperature which the volume of gas would be zero. The temperature is -273 °C or absolute zero.