A função de distribuição de velocidades de moléculas de um gás em um plano é: f(v) = m/(kT) v exp[-mv2/(2kT)]
a) Conceitue velocidade mais provável e encontre uma fórmula para ela.
b) Deduza a equação da velocidade média.
c) Encontre a função de distribuição de energia.
Dado: ∫ u^2n exp(-au^2) du = [1 x 3 x 5 x.. (2n - 1) x ( pi/a)^1/2] / [2^n + 1 x a^n]

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action