Math and Physiology Flashcards
Units for Force
(kg * m) / s^2
Units for Joules
(kg * m^2) / s^2
Units for Power
(Watts) = (kg * m^2) / s^3
Total Mechanical Energy
KE + U
Work when gas expands?
work was done by the gas (+W)
Work when gas is compressed?
Work was done on the gas (-W)
Absolute zero (F, C, and K)
-460, -273, 0
Freezing point of water (F, C, and K)
32, 0, 273
Boiling point of water (F, C, and K)
212, 100, 373
Change in 1C = ____ in F
1C = 1.8F
Isolated Systems
no exchange of energy or matter
total change in internal energy = 0
Closed Systems
capable of exchanging energy (not matter) w/ surroundings
State Functions
independent of the path taken vs. process fx that change depending on path
heat transfer: conduction
direct energy transfer via molecular collisions (touching)
heat transfer: convection
heat transfer by physical motion of fluid material (air, liquid)
heat transfer: radiation
transfer of energy via electromagnetic waves
specific heat (c)
amount of energy needed to raise one g of a substance one degree C
solid to liquid
fusion or melting
liquid to solid
freezing or solidification
liquid to gas
boiling, evaporation, or vaporization
gas to liquid
condensation
solid to gas
sublimation
gas to solid
deposition
specific heat of water
1 cal / (g K)
Isothermal
no change in internal energy (U)
constant T
Q = W
Adiabatic
no heat exchange
change in internal energy (U) = -W
Isobaric
constant pressure, no change in equation
Isochoric
“isovolumetric”
no change in volume, no work is done
change in internal energy = Q