Post on 10-Nov-2015
description
Ideal gases Particles
have no volume. have elastic collisions. are in constant, random, straight-line motion. dont attract or repel each other. have an avg. KE directly related to Kelvin
temperature
Particles have no volume. have elastic collisions. are in constant, random, straight-line motion. dont attract or repel each other. have an avg. KE directly related to Kelvin
temperature
Particles have no volume. have elastic collisions. are in constant, random, straight-line motion. dont attract or repel each other. have an avg. KE directly related to Kelvin
temperature
Particles have no volume. have elastic collisions. are in constant, random, straight-line motion. dont attract or repel each other. have an avg. KE directly related to Kelvin
temperature
TemperatureTemperatureTemperatureTemperature
At constant tempereture At constant tempereture
At constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressure
At constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressureAt constant temperature the volume of agiven mass of a gas varies inversely withthe absolute pressure
P1V1 = P2V2P1V1 = P2V2
P1V1 =P2V2 138 x 10 = 1 x V2 V2 = 1380 l
P1V1 =P2V2 138 x 10 = 1 x V2 V2 = 1380 l
Effect of increasing temperatureEffect of increasing temperature
At constant pressureAt constant pressure
At constant pressure, volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure, volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure, volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure, volume of a givenmass of gas varies directly with absolutetemperature
At constant pressure volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure volume of a givenmass of gas varies directly with absolutetemperatureAt constant pressure volume of a givenmass of gas varies directly with absolutetemperature
At constant volumeAt constant volume
If the volume is kept constant, absolutepressure of a given mass of a gas variesdirectly with the absolute temperatureIf the volume is kept constant, absolutepressure of a given mass of a gas variesdirectly with the absolute temperatureIf the volume is kept constant, absolutepressure of a given mass of a gas variesdirectly with the absolute temperatureIf the volume is kept constant, absolutepressure of a given mass of a gas variesdirectly with the absolute temperature
If the volume is kept constant, absolutepressure of a given mass of a gasvariesvaries directly with the absolutetemperature
If the volume is kept constant, absolutepressure of a given mass of a gasvariesvaries directly with the absolutetemperature
If the volume is kept constant, absolutepressure of a given mass of a gasvariesvaries directly with the absolutetemperature
If the volume is kept constant, absolutepressure of a given mass of a gasvariesvaries directly with the absolutetemperature
In a mixture of gases, pressure exerted byeach gas is the same as that which it wouldexert if it alone occupied the containerIn a mixture of gases, pressure exerted byeach gas is the same as that which it wouldexert if it alone occupied the containerIn a mixture of gases, pressure exerted byeach gas is the same as that which it wouldexert if it alone occupied the containerIn a mixture of gases, pressure exerted byeach gas is the same as that which it wouldexert if it alone occupied the container
P = P1 + P2 + P3 + PnP = P1 + P2 + P3 + Pn
Equal volumes of different gases at sameTemperature and Pressure contain equal
number of moleculesEqual volumes of different gases at sameTemperature and Pressure contain equal
number of moleculesEqual volumes of different gases at sameTemperature and Pressure contain equal
number of moleculesEqual volumes of different gases at sameTemperature and Pressure contain equal
number of molecules
At same Temperature and Pressure,equal number of molecules of
different gases occupy same volumeAt same Temperature and Pressure,
equal number of molecules ofdifferent gases occupy same volumeAt same Temperature and Pressure,
equal number of molecules ofdifferent gases occupy same volumeAt same Temperature and Pressure,
equal number of molecules ofdifferent gases occupy same volume
Pressure = 1 atm (100 kpa) Temperature = 273.15 K (0 C) No of molecules = 1 mole (6.022 x 10 )
Volume 22.4 L
Pressure = 1 atm (100 kpa) Temperature = 273.15 K (0 C) No of molecules = 1 mole (6.022 x 10 )23
Volume 22.4 L
H2 = 2gO2 = 32gN2O = 44g
H2 = 2gO2 = 32gN2O = 44g
Volume 22.4 L
H2 = 2gO2 = 32gN2O = 44g
H2 = 2gO2 = 32gN2O = 44g
Volume 22.4 L
44 g of N2O = 22.4 l44 g of N2O = 22.4 l44 g of N2O = 22.4 l44 g of N2O = 22.4 l
2.24/224 = 1%2.24/224 = 1%
R = Universal Gas ConstantR = Universal Gas Constant
V RT
Assessing the contents in a gas cylinder
P nV RT
Assessing the contents in a gas cylinder
Gas A Gas B
Critical Temperature
The temperature above which a gas can not becompressed in to a liquid
The temperature above which a gas can not becompressed in to a liquid
Critical Temperature
The temperature above which a gas can not becompressed in to a liquid
The temperature above which a gas can not becompressed in to a liquid
(Critical Pressure)(Critical Pressure)(Critical Pressure)(Critical Pressure)