19.10 - Gotchas
Using the wrong temperature scale. Make sure you use Kelvin, not Celsius (and certainly not Fahrenheit!), when applying the equations in this
chapter.
19.11 - Summary
In this chapter, you studied ideal gases, ones where the particles (atoms or
molecules) can be modeled as interacting with each other and the walls of their
container only in elastic collisions.
Avogadro’s number is 6.022×10^23. It is a dimensionless number used to specify a
quantity of matter. A mole contains Avogadro’s number of particles.
The pressure of a gas increases with the number of molecules of the gas and its
temperature, and decreases as its volume increases. The ideal gas law expresses
this relationship in an equation. The ideal gas law can be stated in terms of the
number of moles of a gas, or the number of particles.
The average kinetic energy of a gas molecule and the internal energy of a given
quantity of gas can be calculated from its absolute temperature.
Boyle’s lawPiVi = PfVf
Charles’ lawIdeal gas lawPV = nRT = NkT
Energy and temperature