exam 1 Flashcards
Ideal Gas Law
Pressure = Density * Temperature * R
Pressure formula
Pressure = Force/Area
Kinetic energy equation
KE = 1/2(Mass)(Velocity)^2
Troposhpere
Lowest 10km of the Earth, where all weather occurs, temperature decreases as height increases, capped by the tropopause
Stratosphere
10-15km to about 50km. temperature inversion because of the presence of ozone (ozone absorbs UV radiation, heating the atmosphere up, moving faster). Capped by stratopause
mesosphere
50km to about 85km. temperature decreases with height. Capped by the mesopause.
thermosphere
everything above 85km. temperature inversion (oxygen absorbs sunlight and warms the air)
first law of thermodynamics
the sum of all energy in the universe is constant
internal energy
total energy (potential and kinetic) of all the molecules of a substance
heat
energy in the process of being transferred from one object to another because of the temperature difference
second law of thermodynamics
heat is always transferred from warm to cold
heat capacity
the ratio of the heat required to the amount of resulting in a temperature change. HC = amount of heat absorbed (M)/change in temperature
specific heat
equal to the heat absorbed by 1g divided by the change in temperature
latent heats
the heat energy required to change a substance from one phase to another
latent heat of melting
solid to liquid; energy is supplied by the environment
latent heat of fusion
liquid to solid; energy is introduced to the environment
latent heat of vaporization
liquid to gas; energy required by the environment
latent heat of condensation
gas to liquid; energy supplied by the environment
latent heat of sublimation
solid to gas; required by the environment
latent heat of deposition
gas to solid; supplied by the environment
conduction
the transfer of energy molecule by molecule through a substance
convection
heat transfer by mixing mass fluids (because warmer things have lower density, and things with lower density rise)
advection
transfer of air properties by the horizontal movement of the air itself