physical science chapter 3
Terms
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- melting
- solid to liquid
- freezing
- liquid to solid
- evaporation or boiling
- liquid to gas
- sublimation
- solid to gas, gas to solid
- condensation
- gas to liquid
- kinetic theory of matter
- all matter is composed of atoms and its properties depend on arrangement
- expansion?
- as substance heats, atoms speed up/take up more space/volume increases
- convection?
- as substance cools, atoms slow down/take up less space/volume decreases
- calorie?
- the amount of heat required to raise the temperature of one gram of water by one degree Celsius
- temperature?
- avg kinetic energy of the particles in a substance
- heat of fusion?
- temperature needed to convert solid into liquid
- heat of vaporization?
- temperature needed to convert liquid into gas
- Cp of water?
- 4.18
- Q
- Joules
- m
- grams
- change in T
- degrees C or K
- Cp
- Joules per gramsxdegreesC
- Hv and Hf
- Jg
- Pressure
- Pa, atm, Hg
- V
- mL
- T
- kelvins
- 1st Law of thermodynamics?
- Heat is a form of energy
- 2nd Law of thermodynamics?
- heat moves from hot to cold, never cold to hot