1. Short Answer Practice Propane is contained in a cylinder at 4 atm and 25 °C. What equation would you use to determine if this is an ideal gas? Chapter 5

2. Short Answer Practice A piston compresses a cylinder filled with water vapor at a constant rate. Plot the pressure in the cylinder versus time. Chapter 5

3. Short Answer Practice List the physical properties you have to look up to use the SRK EOS. Use the charts on pages 208-210 of your book to determine the compressibility factor for a system with Pr = 5 and Vr = 0.3. Chapter 5

4. Short Answer Practice: You use a can of compressed air to clean your computer keyboard. When you squeeze the trigger the can quickly cools. Why? Chapter 5

5. Short Answer Practice: Explain why "350 m 3 (STP)/h of nitrogen at 25 o C and 3.5 atm" looks like a contradiction but is not one. Chapter 5

6. Short Answer Practice: If the compressibility factor of a gas (of known temperature and molar volume) in a cylinder is 2, what is the ratio of the actual pressure in the vessel compared to that if you assumed an ideal gas? Chapter 5

7. Short Answer Practice: How can you tell if a gas is ideal? Chapter 5

8. Short Answer Practice: Which egg cooks slower, one boiled in Colorado or one boiled at Carolina Beach, NC? Two eggs are placed in boiling water at sea level and cooked to the identical degree of doneness, one on a sunny and one on a cloudy day. The air temperature is the same on both days. Which egg would take longer to cook? Chapter 5

9. Short Answer Practice: Given a volumetric flowrate of a gas at STP, what is the easiest way to find the molar flowrate? Chapter 5

10. Short Answer Practice The volumetric flow rate of CCl 4 (r = 1.595 g/cm 3 ) is 50 cm 3 /min. What is the mass flow rate of the CCl 4 ? Chapter 5