State of Matter Flashcards
Volume of a gas
It is equal to volume of container in which they are kept in
Temperature
Degree of measure of hotness or coldness of a body
Relation between celsius, kelvin and fahrentiet
C/100=K+273/100=F-32/180
Absolute Temperature
Temperature in kelvin
Pressure
Force/ Per unit area
Absolute Density from ideal gas equation
PM/RT
P = Pressure of the gas
M = Molecular mass
R = Universal Gas Constant
T = Temperature of the gas
Relative Density or Vapour Density
Molecular Weight/2
Isothermal Graph
Graph between pressure and volume at constant temperature
Boyle’s Law
Constant temperature, and pressure is inversely proportional to volume
Charle’s Law
Constant pressure and volume is directly proportional to temperature.
Isobar Graph
Graph between temperature and volume at constant pressure
Gay Lussac’s Law
Constant volume and pressure is directly proportional to absolute temperature
Isochore Graph
The graph between pressure and temperature at a constant volume
Avagadro’s Law
Under similar conditions of temperature and pressure, equal volumes of gas contains equal number of moles.
Value of universal gas constant
- Litre atm/ Kelvin Mole
R = 0.0821(1/12) L atm/Kelvin Mole - Joule/Kelvin Mole
R = 8.314 J/Kelvin Mole
Dalton’s Law of Partial Pressure
The total pressure exerted by a mixture of two non-reactive gases is equal to the sum of the partial of the individual gases in the container.
Graham’s Law of Diffusion
The rate of diffusion or effusion is inversely proportional to the root of molecular mass of the gas provided pressure, area and temperature are constant.
Barometer
Device used to measure pressure and mercury is to measure pressure
Types of speed of gas particle
- Most probable speed = root(2RT/M)
- Average speed = root(8RT/πM)
- Root Mean Square Speed = root(3RT/M)
Compressibility Factor(Z)
PV/nRT
What is the real gas equation?
(P+an^2/v^2)(V-nb) = nRT
a,b → Vanderwaal’s constant
P+an^2/v^2→ Pressure correction
v-nb → Volume correction
Critical Point
Point at which no liquefaction can be done
What is the value of Vc, Pc and Tc?
3b, a/27b^2, 8a/27Rb
Reduced Temperature, Volume and Pressure
Temperature/Volume/Pressure of the gas w.r.t critical temperature/Volume/ Pressure
