Lesson: Vapor Pressure and Relative HumidityPhysics
In this lesson, we will learn how to define a vapor’s relative humidity as the ratio of the partial pressure of the vapor to its equilibrium vapor pressure.
Sample Question Videos
On a warm day when the air temperature is , a metal can is slowly cooled by adding bits of ice to liquid water in it. Condensation first appears when the can reaches . What is the relative humidity of the air? Given the vapor pressure of water at is 1,705 Pa and at is 4,243 Pa.
Air is oxygen.
Find the minimum atmospheric pressure that gives a relatively safe partial pressure of oxygen of 0.16 atm.
What is the minimum pressure that gives a partial pressure of oxygen above the quickly fatal level of 0.060 atm?
Find the density of air at a pressure of 1.00 atm and a temperature of , assuming that air is , , and .
Find the density of the atmosphere on Venus, assuming that the atmosphere is and , with a temperature of 737 K and a pressure of 92.0 atm.