1. Review Game Rules Teams must have captain to settle disputes
Answers must be defended with evidence
You must wait for me to call on you to answer
5 points to winning team, 3 points to second team, 2 points to third team

2. The volume of a gas is 1. 50 L at 30. 0oC and 1. 00 atm
The volume of a gas is 1.50 L at 30.0oC and 1.00 atm. What volume will the gas occupy if the temperature is raised to 134.0oC at constant pressure?

3. Energy must be absorbed by the sample for some phase changes to occur
Energy must be absorbed by the sample for some phase changes to occur. A phase change in which energy is required to cause the phase change to occur is known as endothermic. Name the phase changes that are endothermic.

4. What is the triple point of a substance?

5. Which of the gas laws involves an inverse relationship
Which of the gas laws involves an inverse relationship? What does that mean?

6. True or False: If P1 = 2. 0 atm and P2 = 4
True or False: If P1 = 2.0 atm and P2 = 4.0 atm for a gas at constant temperature, the volume of the gas will decrease, but the amount of the decrease cannot be predicted.

7. What is the equation needed to solve the following problem:
An ethylene gas torch requires 3200 L of gas at 3.0 atm. What will be the pressure of the gas if ethylene is supplied by a L tank?
b) What is the answer?

8. All gases at STP have a molar volume of 22. 4 L/mol
All gases at STP have a molar volume of 22.4 L/mol. What do you use the molar volume of a gas at STP to do?

9. What is the value of T1 for the following problem: 2 L of propane gas is used to cook chicken at a temperature of 150oC and constant P. What volume of propane is needed to cook chicken at 190oC?

10. Assign the variables for the following problem: A sample of CO2 gas is compressed to 2.0 L at 273 K and 4.0 atm. What was the original volume of CO2 at 1.0 atm and 323 K? What law is needed to solve this problem?

11. The room temperature increases from 20oC to 28oC
The room temperature increases from 20oC to 28oC. What happens to the pressure inside a cylinder of oxygen contained in the room?

12. How do you convert temperature from degrees C to K?

13. What are the typical units used for pressure and volume in the gas laws?

14. What volume will 2.4 moles of He occupy at STP?

15. What is the equation for the Combined Gas Law
What is the equation for the Combined Gas Law? What must be held constant?

16. What units must be used for the temperature in calculations of Charles’ Law, the Combined Gas Law, or the Ideal Gas Law?

17. Leftover hamburger patties are sealed in a plastic bag and placed in the refrigerator. What happens to the volume of air in the bag?