click below
click below
Normal Size Small Size show me how
General Science RT
General science review for the RT program at Pima Medical
| Question | Answer |
|---|---|
| Boiling Point | The temp. at which vapor pressure exceeds atmospheric pressure |
| Latent Heat of Vaporization | the energy required to vaporize a liquid |
| Water vapor pressure | Exerts pressure |
| Evaporative cooling | when surrounding air looses heat energy |
| humidity | water vapor pressure |
| AH | Absolute Humidity |
| RH | Relative Humidity |
| %BH | Body Humidity |
| The temp at which condensation happens. | dew point |
| high temps increase evaporation and vise versa | influence of pressure |
| gas molecules travel about randomly and collide at high speeds | kinetic theory |
| velocity of gas is... | proportional to the temp. |
| law of atomic weight of any substance contains the same number if atoms, molecules or ions | Avogardo's Law |
| standard temp and pressure dry | STPD |
| STPD (usually) | 22.4 |
| the ratio of the mass of a substance | density |
| process where molecules moves from high concentrated areas to low concentrated areas. | Diffusion |
| gas diffusion rates | Graham's Law |
| relationship between partial pressure in a gas mixture | Dalton's Law |
| predicts how much of a given gas will dissolve in a liquid | Henry's Law |
| Gas Law Number 1 | No energy is lost during molecular collisions. |
| Gas Law Number 2 | the volume of the molecules themselves is negligible |
| Gas Law Number 3 | no forces of mutual attraction exist between these molecules |
| critical temp | highest temp at which a substance can exist as a liquid |
| critical pressure | the pressure needed to maintain equilibrium between a liquid and gas phases. |
| flow resistance | difference in pressure between the two points along the tube |
| flow resistance | R |
| p1-p2 | pressure of the upstream point subtracted by the pressure of the downstream point |
| turbulent, laminar and transitional | 3 types of flow |
| decrease in pressure in constricted areas | The Bernouli Effect |
| The pressure exerted by the moving flow of a liquid. | radial force |
| negative pressure that can put fluid into its primary flow. | fluid entertainment |