# Shared Flashcard Set

## Details

Chapter 5
Gases and the Kinetic-Molecular Theory
50
Chemistry
10/13/2011

Term
 PV=nRT
Definition
 (atm)(L)=(mol)(0.0821)(K)
Term
 1 atm
Definition
 760 torr, 760 mmHg
Term
 K
Definition
 C+273
Term
 Boyle's Law
Definition
 V=1/P
Term
 Charles' Law
Definition
 V=T
Term
 Amontons' Law
Definition
 P=T
Term
Definition
 V=n
Term
 STP
Definition
 0 C, 1 atm(273 K and 760 torr)
Term
 1 volume of ideal gas at STP
Definition
 22.4 L
Term
 IGL with 2 situations
Definition
 P1V1/n1T1=P2V2/n2T2
Term
 R=1atmx22.4L/1molx273K
Definition
 0.0821
Term
 density
Definition
 m/v
Term
 n
Definition
 m/M
Term
 Dalton's Law of Partial Pressures
Definition
 P(total)=P1 + P2 ....
Term
 Partial Pressure with Mole Fraction
Definition
 P(A)=X(A) x P(total)
Term
 root-mean-square speed
Definition
 u(rms)=sqrt(3RT/M)
Term
 Graham's law of effusion
Definition
 Rate A/Rate B= sqrt(M of B)/sqrt(M of A)
Term
 Pressure
Definition
 force/area
Term
 barometer
Definition
 device to measure atmospheric pressure;tube out, into dish, with mercury
Term
 pressure (increases/decreases)...
Definition
 decreases with altitude
Term
 height is (directly/inversely) related to...
Definition
 inversely with density
Term
 manometer
Definition
 device used to measure pressure of gas
Term
 short orange (P of gas)
Definition
 P(gas)=P(atm) - delta h
Term
 long orange (P of gas)
Definition
 P(gas)=P(atm) + delta h
Term
 SI unit of force
Definition
 newton (N)
Term
 N=
Definition
 [1 kg x m ]/s^2
Term
 N=
Definition
 [1 kg x m ]/2
Term
 SI unit of pressure
Definition
 pascal (Pa)
Term
 1 Pa
Definition
 1 N/m^2
Term
 1 atm
Definition
 =1.01325 x 10^5 Pa or 101.325 kPa
Term
 1 torr
Definition
 1 mmHg
Term
 1 bar
Definition
 1 x 10^5 PaOR 1 x 10^2 kPa
Term
 pounds per sq in (psi)
Definition
 14.7 lb/in^2
Term
 Robert Boyle
Definition
 JAC Charles & JL Gay-Lussac
Term
 greater mass
Definition
 more dense
Term
 density is directly with is inversely with
Definition
 direct MOLAR MASSinverse TEMPERATURE
Term
 P(humid air)
Definition
 P(dry air) of P(added water vapor)
Term
 kinetic-molecular theory
Definition
 central model that explains macroscopic gas behavior at the level of individual particles
Term
 kinetic-molecular theory BY???
Definition
 19th century:::JAMES CLERK MAXWELL &&LUDWIG BOLTZMANN
Term
 Postulate 1.
Definition
 Particle Volume
Term
 Postulate 2
Definition
 Particle motion
Term
 Postulate 3
Definition
 Particle collisions
Term
 kinetic energy
Definition
 to do with.. MOTION
Term
 POSTULATE 1 VOLUME
Definition
 volume of individual particle --> small compared to container, so in essence nothing...Model...mass, but no volume
Term
 POSTULATE 2MOTION
Definition
 constnat, random motion, except forWalls or each other
Term
 POSTULATE 3 COLLISIONS
Definition
 elastic. exchange energy, but do not lose.so E(k) is constant.
Term
 the higher the temp...
Definition
 the more spread out for least & greatest values
Term
 __Ek
Definition
 = c X T
Term
 answers to questions concerning gas behaviour1. ORIGIN OF PRESSURE
Definition
 when moving object collide with wall, FORCE. result in observed pressure!!
Term
 the more molecules in a container
Definition
 the more frequently collide with wallsand the greater the pressure
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