CHAP 14 Flashcards
Heat transfer through stationary matter by physical contact
Conduction
Heat transfer by the macroscopic movement of fluid
Convection
Measure of how well an object radiates
Emissivity
Warming of the Earth that is due to gasses such as carbon dioxide and methane that absorb infrared radiation from the Earth’s surface and reradiate it in all directions, this sending a fraction of it back toward the surface of the Earth
Greenhouse Effect
Spontaneous transfer of energy due to a temperature difference
Heat
Energy required to change a substance from the solid phase to the vapor phase
Heat of sublimation
1 kilocalorie = 1000 calories
Kilocalorie
Physical constant equal to the amount of heat transferred for every 1 kg of a substance during the change in phase of the substance
Latent heat coefficient
Work needed to produce the same effects as heat transfer
Mechanical equivalent of heat
Is Qnet/t = oeA(T2⁴-T1⁴)
Net rate of heat transfer by radiation
Ratio of thickness to the conductivity of a material
R factor
Energy transferred by electromagnetic waves directly as a result of a temperature difference
Radiation
Heat transfer which occurs when microwaves, infrared radiation, visible light, or other electromagnetic radiation is emitted or absorbed
Radiation
Rate of heat transfer from one material to another
Rate of conductive heat transfer
Amount of heat necessary to change the temperature of 1.00 kg of a substance by 1.00°C
Specific heat
