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Catalyst

Catalyst. Calculators today! 1. What would be the new volume if the pressure on 8 L of gas is increased from 10 atm to 12 atm ? 2. You have 0.2 L of neon at a temperature of 289 K. If you the temperature was initially 350 K, what was the initial volume of the gas?.

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Catalyst

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  1. Catalyst Calculators today! 1. What would be the new volume if the pressure on 8 L of gas is increased from 10 atm to 12 atm? 2. You have 0.2 L of neon at a temperature of 289 K. If you the temperature was initially 350 K, what was the initial volume of the gas?

  2. Today’s Agenda

  3. Gas Laws Practice • 1. What is Boyle’s Law? • 2. What is Charles’ Law? • 3. If I have 0.275 moles of gas at a temperature of 75 K and a pressure of 2.6 atmospheres, what is the volume of the gas? 

  4. Today’s Agenda

  5. Demo Day! • We will do a series of demonstrations and short labs to bring the gas laws to life! • After each one, you will explain what happened and WHY (using a gas law as proof)

  6. Demonstrations • Egg in a Bottle • Can Crushing

  7. Today’s Agenda

  8. Can you explain it? • A football inflated inside and then taken outdoors on a winter day shrinks slightly.

  9. Can you explain it? • Hot air balloons increase slightly in volume as they rise higher in the air.

  10. Can you explain it? • Car tires have a lower pressure in the morning than in the afternoon

  11. Can you explain it? • A slightly underinflated rubber life raft left in bright sunlight swells up (Why shouldn't you overinflate your life raft when your ship goes down in tropical waters?)

  12. Can you explain it? • Throwing a can of hair spray into a fire may cause it to explode.

  13. Today’s Agenda

  14. Exit Slip 1. According to the ideal gas law, as the number of molecules goes up, the pressure will ___________. 2. According to Charles’ Law, as the temperature goes up, the volume will go ______________. 3. According to Boyle’s Law, as volume goes up, pressure will go ______________. 4. If I have an unknown quantity of gas at a pressure of 0.5 atm, a volume of 25 liters, and a temperature of 300 K, how many moles of gas do I have?

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