1. |
Helium in a 100 mL container at a pressure of 66.6 kPa is
transferred to a container with a volume of 250 mL. What is the new pressure
if no change in temperature occurs? What is the new pressure if the
temperature changes from 20^{o}C to 15^{o}C? |
2. | What will have to happen to the temperature of a sample of
methane if 1000 mL at 98.6 kPa and 25^{o}C is given a pressure of
108.5 kPa and a volume of 900 mL? |
3. | A gas has a volume of 225 mL at 75^{o}C and 175 kPa.
What will be its volume at a temperature of 20^{o}C and a pressure
of 1.0 X 10^{5} kPa? |
4. | A gas is heated to 80^{o}C and a pressure of 180 kPa.
If the container expands to hold a volume of 800 mL, what was the volume
of the gas, (in litres), at a temperature of 50^{o}C and 120 kPa
pressure? |
5. | A 200 mL sample of gas is collected at 50 kPa and a temperature
of 271^{o}C. What volume would this gas occupy at 100 kPa
and a temperautre of -14^{o}C? |
6. | Correct the following volumes at STP and at SATP:
(a) 24.6 L at 25^{o}C and 104 kPa (b) 150000 mm^{3} at 100^{o}C and 75.00 kPa (c) 0.045 L at -45.0^{o}C and 140.0 kPa (d) 0.5 L at 115^{o}C and 148000 Pa |
7. | A certain sample of gas has a volume of 0.452 L measured at
87^{o}C and 0.620 atm. What is its volume at 1 atm and 0^{o}C? |
8. | Natural gas is usually stored in large underground reservoirs
or in above ground tanks. Suppose that a supply of natural gas is stored
in an underground reservoir of volume 8.0 X 10^{5} m^{3}
at a pressure of 360 kPa and a temperature of 16^{o}C. How many above
ground tanks of volume 2.7 X 10^{4} m^{3} at a temperature
of 6^{o}C could be filled with the gas at a pressure of 120 kPa? |
9. | The human lung has an average temperature of 37^{o}C.
If one inhales Alaskan air at 1 atm and -28.9^{o}C and then holds
it, to what pressure will the air in the lungs rise? (The bursting strength
of the human lung is over 2 atm. Will they burst?) |
10. | A cylindrical coffee can is welded shut at 20^{o}C at sea level. Its height is 20 cm and its radius is 15 cm. If the bursting strength of it's "tin" plate is 3.75 atm, to what temperature may it be ehated before bursting? |