CHEM 0110 Lecture Notes - Lecture 12: Heat Capacity, Photon, Root Mean Square
Document Summary
The mole fraction of a component is the fraction of moles of that component in the total moles of gas mixture. The fraction of the total pressure contributed by gas a in a mixture of gases is equal to its fraction of moles xa call the mole fraction of a. A theory based on he assumption that a gas consists of molecules in constant random motion. Ke is related to the mass and velocity. 5 postulates of the theory (in book notes). Molecular speeds: according to kinetic theory, molecular speeds vary over a wide range of values. This distribution depends on the temperatures, so it increases as the temperature increases. Root mean square speed: a type of average u=square root of 3rt/mm u=(3rt/mm)^ . A wave is a continuously repeating change or oscillation in matter or of a physical field. Light is a wave, consisting of oscillations in electric and magnetic fields, traveling through space.
