Gas Pressure

• Temperature

  This pertains to the measurement of speed of particles while moving inside an object.
• Volume


  It refers to the amount of space an object takes up.
• Number of Particles


  The more gas particles in a container, the greater its pressure, vise versa.
• Gas Laws

  1. Boyle's Law
  2. Charle's Law
  3. Gay-Lussacs Law'
  4. Avogadro's Law
  5. Combined Gaw Law
• Boyle's Law

  • Robert Boyle (1662)
  • States that the pressure exerted by gas at constant temperature is inversely proportional to the volume occupied by it.
• Boyle's Law

  • Robert Boyle (1662)
  • States that the pressure exerted by gas at constant temperature is inversely proportional to the volume occupied by it.
  • $P1V1=$$P2V2$
• Charles law

  •  Jacques Charles (1787)
  • The Temperature should be in Kelvin State
  • $°C+$$273$
  • Volume-temperature relationship is directly proportional at constant pressure.
  • $V1/T1=$$V2/T2$
• Gay-Lussac's Law

  • Joseph-Louis Gay-Lussac (1882)
  • The pressure of a certain mass of gas is directly proportional to its absolute temperature at constant volume.
  • $P1/T1=$$P2/V2$
• Avogardo's Law

  • Amadeo Avogadro (1811)
  • The volume of gas at constant temperature and pressure is directly proportional to the number of moles of gas present.
  • $V1/n1=$$V2/n2$
• Combined Gas Law - States that the volume is inversely proportional to its pressure and directly proportional to its absolute temperature.

  $P1V1/T2=$$P2V2/T1$