Gas Laws- CH 03
Gas Laws- CH 03 Charles, Boyles, Gay Lussac’s
Gases- Gas Laws • When the KE among the atoms of a gas increases, the atoms collide into each other and with sides of the container-
producing a force
• • • •
This force is called : PRESSURE more collisions, higher pressure Less collisions, lower pressure Measure in Pascal's ( Pa) or Kilopascals ( kPa)
Boyles Law • British scientist, Robert Boyle • dealing with VOLUME and PRESSURE
• Boyles Law – If you decrease the volume of a container of gas, the pressure of the gas will increase, if you increase the volume of a container of gas the pressure will decrease . • • • • •
Volume and pressure are inversely related
One goes up, the other goes down Smaller the volume, more collisions, higher pressure Larger volume, less collisions, lower pressure
Temperature is constant.
Boyles Law
P1V1 = P2V2 EX: The gas in a balloon has a volume of 7.50 L at 100.0 kPa. The balloon is released into the atmosphere, and the gas expands to a volume of 11.0 L. assuming the temp. is constant, what is the pressure on the balloon at the new volume? http://education-portal.com/academy/lesson/boyles-charles-gay-lussacslaws-pressure-volume-and-temperature-relationships.html#lesson
Charles Law Jacque Charles ~ French scientist • Researched relationship between volume and temperature • Direct relationship Charles Law – if the temperature of a gas increases, the volume of the gas also increases – if the temperature of a gas decreases, the volume of the gas also decreases
As the temp increases, the atoms absorb more heat energy---the atoms speed up and move further away from each other—causing an increase in volume. • Pressure is constant
Charles Law V1/T1 = V2/T2 EX: A 250.0 cm3 sample of neon is collected at 44 oC. Assuming the pressure remains constant, what would be the volume of the neon at standard temperature (273K)? Change C to Kelvin first! http://education-portal.com/academy/lesson/charleslaw-gas-pressure-and-temperaturerelationship.html#lesson
Gay Lussac’s Law • Joseph Gay-Lussac • The pressure of a gas increases as the temperature increases , pressure decreases as temperature decreases • Direct relationship • volume is constant
Gas laws • http://educationportal.com/academy/lesson/the-kineticmolecular-theory-properties-ofgases.html#lesson
Gases- Gas Laws • When the KE among the atoms of a gas increases, the atoms collide into each other and with sides of the container-
producing a force
• • • •
This force is called : PRESSURE more collisions, higher pressure Less collisions, lower pressure Measure in Pascal's ( Pa) or Kilopascals ( kPa)
Boyles Law • British scientist, Robert Boyle • dealing with VOLUME and PRESSURE
• Boyles Law – If you decrease the volume of a container of gas, the pressure of the gas will increase, if you increase the volume of a container of gas the pressure will decrease . • • • • •
Volume and pressure are inversely related
One goes up, the other goes down Smaller the volume, more collisions, higher pressure Larger volume, less collisions, lower pressure
Temperature is constant.
Boyles Law
P1V1 = P2V2 EX: The gas in a balloon has a volume of 7.50 L at 100.0 kPa. The balloon is released into the atmosphere, and the gas expands to a volume of 11.0 L. assuming the temp. is constant, what is the pressure on the balloon at the new volume? http://education-portal.com/academy/lesson/boyles-charles-gay-lussacslaws-pressure-volume-and-temperature-relationships.html#lesson
Charles Law Jacque Charles ~ French scientist • Researched relationship between volume and temperature • Direct relationship Charles Law – if the temperature of a gas increases, the volume of the gas also increases – if the temperature of a gas decreases, the volume of the gas also decreases
As the temp increases, the atoms absorb more heat energy---the atoms speed up and move further away from each other—causing an increase in volume. • Pressure is constant
Charles Law V1/T1 = V2/T2 EX: A 250.0 cm3 sample of neon is collected at 44 oC. Assuming the pressure remains constant, what would be the volume of the neon at standard temperature (273K)? Change C to Kelvin first! http://education-portal.com/academy/lesson/charleslaw-gas-pressure-and-temperaturerelationship.html#lesson
Gay Lussac’s Law • Joseph Gay-Lussac • The pressure of a gas increases as the temperature increases , pressure decreases as temperature decreases • Direct relationship • volume is constant
Gas laws • http://educationportal.com/academy/lesson/the-kineticmolecular-theory-properties-ofgases.html#lesson
