1 / 14

Clicker Question:

Clicker Question: An 18.0 L helium tank is pressurized to 26 atm. What is the pressure in the tank in units of psi? 1.8 470 1.4 380 21. 1 atm = 760 mm Hg = 760 torr = 101325 Pa = 14.7 psi. 10.5 g. Announcements. ALEKS due Tuesday Quiz due Friday. Chapter 9 Gases.

pisces
Download Presentation

Clicker Question:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Clicker Question: An 18.0 L helium tank is pressurized to 26 atm. What is the pressure in the tank in units of psi? • 1.8 • 470 • 1.4 • 380 • 21 1 atm = 760 mm Hg = 760 torr = 101325 Pa = 14.7 psi

  2. 10.5 g

  3. Announcements • ALEKS due Tuesday • Quiz due Friday

  4. Chapter 9Gases

  5. Unit Conversions (pressure) 1 atm = 760 mm Hg = 760 torr = 101325 Pa = 14.7 psi

  6. Shrinking of balloon in liquid nitrogen http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/balloon.html Ideal Gas relationships http://www.grc.nasa.gov/WWW/K-12/airplane/Animation/frglab2.html

  7. Ideal Gas Law

  8. Gas Constant* *From Wikipedia

  9. Kinetic Theory of Ideal Gas • Gas molecules are point masses • Gas molecules move randomly • Hit side of container to create pressure • No attraction between molecules • Collisions are elastic • K.E. of gas molecules ∝ temperature

  10. STP(Standard Temperature and Pressure) • 273 K (0°C) • 1 atm

  11. Clicker Question: What is the volume of 1.0 mole of He at STP? • 22.4 L • 24.5 L • 2.27 m3 • 2270 m3 • 44.6 L

  12. Combined Gas Law Modified Combined Gas Law

  13. Laws derived from Ideal Gas Law • Boyles’s Law • Charles Law • Gay-lussac’s Law • Avogadro’s Law

More Related