5 Steps to a 5 AP Physics B, 2014 Edition by Greg Jacobs

Author:Greg Jacobs
Language: eng
Format: epub
Publisher: McGraw-Hill Education
Published: 2013-05-01T16:00:00+00:00

In this version, N is the number of molecules of gas, and kB is called Boltzmann’s constant (kB = 1.38 × 10–23 J/K).

If you ever need to convert moles to molecules, remember that one mole contains 6.02 × 1023 molecules. This conversion is on the constant sheet.

The rigid frame of a dirigible holds 5000 m3 of hydrogen. On a warm 20°C day, the hydrogen is at atmospheric pressure. What is the pressure of the hydrogen if the temperature drops to 0°C?

The best way to approach an ideal gas problem is to ask: “What is constant?” In this case, we have a rigid container, meaning that volume of the hydrogen cannot change. Also, unless there’s a hole in the dirigible somewhere, the number of molecules N must stay constant. So the only variables that change are pressure and temperature.

Start by putting the constants on the right-hand side of the ideal gas equation:

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.