Place homework in basket at the front. Warm-Up 1/27/14 Place homework in basket at the front. Write down all the units that you know for volume, temperature, moles, and pressure. A unit is like grams is used to measure mass.

-Understand how to use the ideal gas law in word problems. Objective 1/27/14 -Understand how to use the ideal gas law in word problems. Agenda -Recap quiz -Gas Laws Project -Ideal Gas Law

Review Quiz

Teach one of the four gas laws that you learned Gas Laws Project Teach one of the four gas laws that you learned Gay-Lussac’s Law Boyle’s Law P1V1 = P2V2 Charles’ Law Avogadro’s Law

Gas Laws Project: Criteria Gas Law Reference State which gas law your presentation is teaching History of the Gas Law Give background information of the gas law. Tell about whom the gas law is named after and how this person came to discover this relationship between gases Sample Problem Provide a sample problem for how to use this gas law to solve for a variable of gases.

Gas Laws Project: Criteria 4. Real-World Application Give an example of how this gas law is seen in the real world. 5. Use of Images/Symbols Use pictures to better support your presentation. Make it pop! 6. Neatness Make this presentation clear and easy to understand. 7. Citations Don’t plagiarize! If the words are not your own, you MUST cite them.

Gas Laws Project IF you choose to work with a partner, each person must turn in: A detailed summary of what you personally did. A summary of what your partner did. Don’t turn it in? – points deducted for both you and your partner.

Friday’s Homework On a separate sheet of paper – Write/type a proposal for the Gas Laws Project. Include: -What gas law you are presenting. -What you are going to do to present it (poster or video clip). -What supplies you might need. -A real-world application for the gas law you picked.

Putting the Gas Laws Together Boyle’s Law Gay-Lussac’s Law P1V1 = P2V2 Charles’ Law Avogadro’s Law Some variables (P, V, T, n) were always kept constant (the same)

Putting the Gas Laws Together In real-life situations, variables are not always constant. Ideal Gas Law PV = nRT Can account for the changes in P, V, n, and T.

PV = nRT Ideal Gas Law P = pressure (atm) V = volume (L) n = number of moles (mol) R = universal gas constant T = temperature (K)

Ideal Gas Law If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12liters, what is the temperature?

Ideal Gas Law: You Try If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of31 liters, and a temperature of 87oC, how many moles of gas do I have?

1/27/14 Homework Look up the history of the gas law that you picked: -Find at least five facts about the man whom the gas law is named for. -Write down what experiment(s) he performed to determine this gas relationship.

Exit Ticket There are 3 moles of gas in a container with a volume of 60 liters and ata temperature of 400 K, what is the pressure inside the container?