Today in class: Notes: Phase Changes - below.
Questions from Lab - turn in if complete
Review compressibility of liquid/gas AND try again to make clouds.
Discuss briefly lab tomorrow - safety glasses, etc.
Videos - some classes saw video demonstrations on energy and phase change, some classes saw video on storm chasers
Phase Change Notes:
Common phases:
Solid, Liquid, Gas (also Plasma - excited gas)
Low E--> more E
Energy expended or absorbed between phases: Melting/freezing (fusion)
vaporization / condensation
Water requires huge amounts of E to change Temp or Phase
Resistance to temp change: Specific Heat ("thermal inertia")
Water = very high specific heat
Lab tomorrow!
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