CHE 310 Lecture 3: CHE310SurfaceAirPollution

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 310
• Professor: Katherine Aubrecht

Document Summary

Surface air pollution: describes how many moles of a substance are present in a million moles. Ppmv = parts per million volume of air or how many mole of substance in 1 mole of air. Once you convert concentration to moles or molecules, set value equal to x/106 or x/109. Use volume to fine number of moles (n) with eq: pv=nrt. Important conversions: m3 = (100 cm)3, ml = cm3, 6. 023*1023 molecules/mole. Nitrogen oxides are almost all from transportation and stationary-source fuel combustion (e. g. power plants, industrial furnaces, and space heating in homes and offices). Combustion of any fuel in air produces nox as a byproduct. Sources are kerosene heaters, unvented gas stoves and heaters tobacco smoke. Formation of no: n2 + o2 2no. Equilibrium constant equation: keq = [no]2/[n2][02] Free energy change of a reaction: = free energy change: this equation gives the keq at any temperature, from the value of the.