Gas Law problems with solution Part - 2

6. A constant pressure tank of gas at 1.01 Atm has propane in it at 15°C when it is at 255 cubic meters. What is its volume at 48°C?


7. A SCUBA tank is filled with air at 16.7 Atm at 24°C, but someone leaves it out in the sun to warm to 65°C. What is the tank pressure?

8. The usual partial pressure of oxygen that people get at sea level is 0.20 Atm., that is, a fifth of the usual sea level air pressure. People used to 1 Atm. air pressure begin to become "light-headed" at about 0.10 Atm oxygen. As a rule of thumb, the air pressure decreases one inch of mercury each thousand feet of altitude above sea level. At what altitude should airplane cabins be pressurized? Up to about what altitude should you be able to use unpressurized pure oxygen? (Express your answer in feet above Mean Sea Level, or MSL.)

9. Which diffuses faster, the bad smell from a cat-pan due to ammonia or an expensive French perfume with an average molecular weight of 170 g/mol? How much faster does the faster one diffuse?

10. What is the mass of neon in a 625 mL neon tube at 357 mmHg & 25°C?

Answer

6. 284 cubic meters	7. 19.0 Atm	8a. 15,000 ft. MSL
8b. 27,000 ft. MSL	9. Ammonia diffuses 3.16 times faster (Wouldn't you KNOW it?)
10. 0.242 g