Enter your Sign-on user name and password.

Forgot password?
  • Follow us on:
Loading video...

Start Learning Now

Our free lessons will get you started (Flash® 10 required).
Get immediate access to our entire library.

Sign up for Educator.com

Features Overview

  • Get on-demand access to our complete library
  • Search and jump to exactly what you need to learn
  • Track your progress
  • Download practice and lesson files
  • *Ask questions and get answers from our community & instructors

Partial Pressure, Real Gases, Atmospheric Pollution

  • Mole fraction = # mol. component/total # mol. of all components

  • Partial pressure = mol.fraction x total P

  • Dalton’s Law: total P = sum of all partial P

  • Gas stored over water: total P = partial P + v.p. of water

  • Real gases; van der Waals’ formula

  • Real gases depart from ideal at low T and high P

  • Pollutants of atmosphere: ozone hole

  • Chlorofluorocarbons : destroy ozone; greenhouse effects

  • Oxides of nitrogen in auto exhaust

  • Sulfur oxides from fuels and metal refining

  • Acid rain from N and S oxides

Partial Pressure, Real Gases, Atmospheric Pollution

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry