CHEM 102 Lecture Notes - Lecture 4: Chemical Formula, Heat Capacity, Methamphetamine

102 views3 pages

Document Summary

Boiling point : the temperature at which vapor pressure=atmospheric pressure. Larger heat capacity=a smaller temperature change when energy is added. 2- solid and liquid ( q = m s. The solid phase of a pure substance is favored at high pressures and lower temperatures. Along the black lines is where matter exists in two states at once (solid and liquid, liquid and gas, solid and gas) Triple point : temperature where all three phases coexist. Critical point : the temperature and pressure is in between a liquid and. Supercritical fluid : where pressures and temperatures are both above a gas (high temperature and high pressure) the critical point. Molecular formula: lists elements involved and their quantity. Structural formula: lists groups of elements bonded in a molecule. Structural isomers: molecules that have the same molecular formula but different structures (changes how the molecules react and other properties)