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# RT 21 Exam 1

### RT 21 Exam 1 ELAC

TermDefinition
Law of conservation of energy Energy can not be created or destroyed, it can only be transferred
Kinetic theory states that the atoms & molecules that make up matter are in constant motion. Temperature plays a role, hot moves more than cold.
States of Matter solid, liquid, gas
melting point the temperature at which melting occur
melting changeover from solid to the liquid state
freezing opposite of melting
freezing point temperature at which the substance freezes; same a sits melting point
Potential Energy is stored energy
Kinetic Energy is the energy that an object possesses when it is in motion
Fahrenheit to Celsius C=.55x(F-32)
Celsius to Fahrenheit F=(1.8xC)+32
Celsius to Kelvins C+273=Kelvins
Celsius absolute zero -273°C
Fahrenheit absolute zero -280°F
Kelvins absolute zero 0 Kelvin
Absolute pressure a pressure scale in which the 0 point is a complete vacuum or the pressure at which all molecular motion stops. Also includes atmospheric pressure
Gauge pressure 0 point is atmospheric pressure or the pressure if the atmosphere pushing down on a given point on earth
Negative pressure negative or minus gauge pressure is frequently used in respiratory care to describe gauge pressure. Same as vacuum pressure
critical temperature Temperature reached in which gaseous molecules cannot be converted back to a liquid no matter what pressure is exerted on them
critical pressure pressure of a substance is the pressure required to liquefy a gas at its critical temperature
STPD specific temperature, pressure and humidity conditions that are used to measure gases so that we can compare measurements, usually of gases made by different people at different times.
BTPS measures body values verse normals
ATPS measured at ambient temperature, pressure, saturated with water vapor: ambient temperature and pressure, saturated.
Atoms Smallest particle of an element that retains the characteristics of that element
proton a subatomic particle with a positive charge and a mass of 1 atomic mass unit and is located with in the nucleus.
neutron it is a subatomic particle without an electrical charge and a mass of
electron is the lightest subatomic particle and is negatively charged
Compounds contains at least two different elements.
CaO2 Total oxygen content - (Hbx1.34xSaO2)+(PaO2x0.003)
Hb hemoglobin (carries O2)
1.34 or 1.36 carrying capacity of Hb for O2 is 1.34ml O2/gr Hb
DO2 Deliver of oxygen
normal cardiac output 4-8L (6L)
volume is the three-dimensional space inside the container holding the gas. The Sl unit for volume is the cubic metter, m3. A more common unit is L.
Boyle's law P1*V1=P2*v2
Created by: 725650999
Popular Respiratory Therapy sets

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