ENGR 323 Lecture 7: Engr 323 Day 7
Document Summary
V = volume, n = # of moles,9. Pv = n kb t where, n = # of molecules kb = 1. 38 x 10-23 j/k. P = r t where = density. This is a good approximation for monoatomic gases, as well as any gas at normal temperatures and pressures. Gets better for higher temperatures and low pressures. normal air is mainly composed of nitrogen and oxygen (both monatomic), so this can (pretty much always) be used for air. The amount of energy required (per unit mass) to increase the temperature of an object by one degree. Foe ideal gases, enthalpy: h = cp t internal energy: u = cv t. Measures how sticky or thick the fluid is. A car"s fuel may specs says 10w30 referring to the viscosity of oil ranging from 10 weight to 30 weight. Viscosity of a fluid is highly temperature dependent. Viscosity of liquid decreases with increase in temperature. (inversely proportional)
