Physical Science Chap. 3-6 notes pages 153-171
STP=The standard____________ and ____________.
Standard Pressure= The ____________exerted by the atmosphere at ____________level.
1 ______ (atm) 760 ______ 101.3 ____________ (kPa)
Standard temp.=The___________at which water _______.
_______oC ______oF or ____ K
Charles Law=
At constant ________, the _______ and _________are directly proportional.
V1/T1=V2/T2
Temp must be in ____________ for Charles Law!
Boyles Law=
At a constant _______, the ________and _________are inversely proportional.
V1P1=V2P2
Ideal Gas Law PV = RnT
States that all gases at any ________, ______, _______, and # of moles will always equal this number.
Ideal Gas Constant =(R)=8.31 kpal/molk
Combined Gas Law = The combined expressions of the previous gas laws.
N=#OF MOLES
P1 * V1 = P2 * V2
T1 * N1 = T2 * N2
Avagadro's Hypothesis = Equal _______of gases at the same ________and _________ contain equal # of atoms
At ____ 1 mol of any gas has _________particles, and occupies a space of ________.
Daltons Law of Partial Pressures= The _______ pressure exerted by a mixture of gases is a result of the individual gas pressures
PTotal = P1 +P2 +P3
Ex.
What is the total pressure if 40 kpa of O2, 20 kpa of He and 25 kpa of CO2 are in a container?
Kinetic theory- explanation of how ________ in matter ________
Melting point- ________at which a ________begins to ________
Heat of fusion- amount of energy required to change a substance from the solid phase to the liquid phase at its melting point(________ needed ________an object.)
Boiling point- temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid(________ at which a ________changes _ _ ___)
Heat of vaporization- amount of energy required for the liquid at its boiling point to become a gas
(________ needed ________ an object.)
Diffusion=
The tendency of _______and ________to move from a ________ concentration to a low concentration.
*Effusions=
The escape of ________ through tiny ________ in a container
When two bodies of different masses have the ________ kinetic energy, the ________ body moves ________.
Plasma- matter consisting of positively and negatively ________ ________
Thermal expansion- ________ in the size of a substance when the ________ is increased
Buoyancy- ability of a fluid to exert an ________ ________ on an object immersed in it
Real vs. Ideal gases
Real gases Ideal gases
Form ________ and ________. ________stay in gas state.
Have ________. Have no ________.
Occupy ________. Atoms take up ___ _____.
PESSURE= The ________applied to ________ unit of ________ area.
Pressure = ________/________ or P=F/A
Pressure in ________ = Force in ________/________ in m2
Example:
What is the pressure exerted if a force of 10 N is over 20 m2?
P = 10 N/(20 m2)
P = ____ pascals or Pa
1 kPa = ________ Pa
Newton(N)= The ________ commonly used to express________.
At ________ level, for ________kg, there is ________of force acting on the object.
Example:
What is the force on a 20 kg object?
Mass in Kg X 9.8 N/kg
Absolute zero= The ________ point on the ________ scale, at which all ________theoretically stops.
Kinetic energy= The energy produced by the ________of the atoms.
Kinetic molecular theory =Postulates of gas behavior.
1. Gases consist of tiny ________(atoms or ________)
2. Gas particles are in ________ ________ motion.
3. Collisions of gases are________. (Kinetic ______ is not lost when molecules collide.)
4. At any________, the individual molecules will have ________amounts of _____ energy.
Layers of the atmosphere
1. ________= Layer closest to the Earth. Most dense and contains most of the Earth’s _____. (Approximately 78 % N2, 21 % O2, and 1 % Ar, plus numerous other gases in trace amounts.) See table 1 on p. 385.
2. ________= The layer of atmosphere that contains the ________ layer. This layer is thin, cold until the ________is absorbed, and contains little ________.
3. ________= The ________layer of the atmosphere and has high ________ that reach 320 km/hr.
4. ________ = The upper most layer of the atmosphere that absorbs most ______ radiation. This layers contains the ________, which absorbs most ____ ____ and _-___.
________ principle= The relationship between ________ and the ________ of the displaced fluid.
________ Property= A property used to ________ and ________substances.
________= The ________created as an object moves through a ________or gas.
________ principle= The ________ a fluid moves, the ________ pressure it exerts.