PHYS1001 Lecture Notes - Lecture 13: Monatomic Gas, Gas Constant, Boltzmann Constant
Document Summary
Molecules do not exert a force on each other - there is no potential energy. The molecules are in constant motion; they obey newton"s laws of motion. Collisions of molecules with walls of a container are completely elastic collisions. P = f where p is in units of pascals, newtons per square meter. P is the absolute pressure of the gas (pa) N is the number of moles of gas. R is the universal ideal gas constant - r = 8. 314 j mol 1 k 1. The number of molecules in related to the number of moles by. Na is avogadro"s number = 6. 022 10. Boltzmann constant k = r = 1. 381 10 23. Pressure comes from molecules colliding with the side of the container. K = n ( 1mv2 ) av tr. Where ktr is the kinetic energy of all the particles. By this theory, temperature is a direct measure of the average kinetic energy of its molecules.
