science gas laws

• Boyles law states that the pressure of gas is inversely proportional to its volume
• If the pressure and temperature of gas remain constant, the volume will increase if the no. of moles increases
• If a gas volume is doubled but the temperature remains constant molecules move faster
• Which of the following chemical systems has molecules that vibrate around a fix point in relation in neighboring particles. air

  • soft drinks
  • block of wood
  • air
  • gasoline
• 62 degree celsius - which of the following liquids below has the fastest moving molecules

  Liquid boiling temperature

  a.A 85 degree celsius

  b.B 100 degree celsius

  c.C 62 degree celsius

  d.D 200 degree celsius
• 1 atm - Which of the following is equal to the standard pressure

  a.1 atm

  b.1 torr

  c.273kPa

  d.760atm
• air inside a syringe - Which example has particles that can be drawn closer to occupy smaller volume

  • fruit juice
  • block of wood
  • air inside a syringe
  • ice cube
• how does the temperature affect the average kinetic energy of gas molecules?

  • as the temperarure decreases the average kinetic energy of gas molecules decreases
• What will happen to the gas pressure as the temperature increases, if the amount and volume of the gas are kept constant

  • the gas pressure increases
• Pressure - Which of the following is constant when using Charles law?

  • energy
  • temperature
  • pressure
  • volume
• goes down - When temperature of a gas goes down, What happen to its volume?

  • goes down
  • rises
  • goes down then rise
  • rises then falls
• 0.0821 L.atm/mol.k - What is the value of R in ideal gas law
• What is the equivalent of 100 degree celsius in kelvin - 373.15K
• What is most likely to happen when an aerosol can is heated? - the can will eventually explode
• Jane can still pump air in the party balloon even though it is already inflated. What explains this phenomenon? air molecules can be compressed

  • balloon looks better if its size is bigger
  • balloons are made up of plastic
  • the air iniside the balloon is hot
  • air molecules can be compressed
• If the temperature and pressure of a gas are kept constant, how does the volume of a gas change according to Avogadro’s Law when the number of moles is increased? it increases proportionally

  • it remains the same
  • it doubles
  • it halves
  • it increases proportionally
• What is the relationship between temperature and the average kinetic energy of gas particles? directly proportional
• which of the following is not a unit of pressure? Ibs

  • atm
  • Ibs.
  • torr
  • psi
• Which of the following is not a unit for temperature? C

  • 0C
  • k
  • 0F
  • C
• Jaques Charles According to him the amount of gas is directly proportional to its volume at constant temperature and pressure.
• What is the equivalent of 2atm in torr? 1520
• How many milliters in 2.5L

  2500ml
• Joseph Louis Gay-Lussac According to him temperature is directly proportional to pressure.
• Which of the following situations is the best application for Charles law. hot air balloon

  • breathing
  • hot air balloon
  • aerosol can explosion
  • all of the above
• Which of the following situation is the best application for Boyle’s Law. breathing

  • breathing
  • hot air balloon
  • aerosol can explosion
  • all of the above
• What will happen to gas molecules when heated? rise up