| A | B |
|---|
| thermometry | study of temperature |
| calorimetry | study of heat |
| heat | thermal energy |
| temperature | average Kinetic energy |
| infrared radiation | heat waves |
| kinetic energy | energy in motion |
| fixed points( for temperature scale) | boiling point of H2O, freezing point of H2O |
| Three temperature scales | Kelvin, Celsius, Fahrenheit |
| units for heat | Calories, Joules |
| a calorie | heat needed to raise 1gram of H2O by 1 degree celsius |
| specific heat capacity | heat needed to raise 1 gram of a sample by 1 degree celsius |
| isolated system | closed container |
| calorimeter | devise to measure reactions' heat |
| endothermic | reaction that absorbs heat (feels cool) |
| exothermic | reaction that releases heat (feels hot) |
| direction of heat flow | from high to low temperatures |
| The Kinetic-Molecular Theory | gas particles in motion, collide and cause pressure |
| compressibility | gas can be compressed and reduce it's volume |
| crystalline lattice | solid particles arranged in patterns |
| fusion | melting |
| melting point | temperature wher solids begin to become liquid |
| heat of fusion | amount of heat needed to melt a substance |
| freezing | going from a liquid to a soid |
| heat of solidification | heat released fro liquid while becoming solid |
| boiling | going from liquid to a gas |
| boiling point | the temperature when liquid begins to turn to a gas |
| heat of vaporization | amount of heat needed to change a liquid to a gas |
| evaporation | liquid to gas only on the surface |
| condensation | gas to a liquid |
| heta of condensation | heat released when gas turns to a liquid |
| heat calculations | if sample needed 334 J to melt, it should release 334 J in order to freeze |
| manometer | device to measure pressure |
| vapor pressure | gas just above liquid's surface - exerts pressure |
| units for pressure | mmHg(Torr), Pascal(Pa), atmosphere(atm) |
| sublimation | going from a solid to a gas |
| STP (two values) | standard temperature and pressure, O degrees celsius and 1 atmosphere |
| normal boiling point | usually 100 degrees celsius for water |
| "cold" boiling of water | when water boils less than 100 degrees celsius, because of less atmospheric pressure |
