CHEM 101 Lecture Notes - Lecture 7: Molar Mass, Mass Ratio, Effusion
Document Summary
Ideal gas particle inside a cubic box. Gas particles are in constant random motion. Frequency of these collisions is the pressure of the gas. Average kinetic energy is directly proportional to the. If particle hits a side wall, only the x-component of the velocity hits the wall. The y-component of the velocity remains the same. This means that angle of incidence = angle of reflection. Kinetic energy of the particle does not change. Means that speed of particle does not change. U2 = sums of squares of x, y, and z components of velocity. The difference between the last two is the numerator. One is # of particles times mass of one particle = mass of all particles. The other is number of moles times mass of one mole = mass of all particles. M= mass of particle, m = molar mass, n = # moles, n = # particles, na =
