<p>Name ______Date ______Period 1 2 3 4 5 6 7</p><p>Ch 14.2 Worksheet Combined Gas Law (see p 428) P1V1 = P2V2</p><p>T1 T2 10. A container with an initial volume of 1.0 L is occupied by a gas at a pressure of 1.5 atm at 25oC. By changing the volume, the pressure of the gas increases to 6.0 atm as the temperature is raised to 100oC. What is the new volume?</p><p>11. 45.0 L of a gas is at 27oC and 0.521 atm. What volume will it occupy at STP?</p><p>12. A weather balloon has a volume of 355 L at 1.10 atm pressure and 28oC. When released it ascends into the clouds where the pressure is 0.345 atm and the temperature is – 8.5 oC. What is the volume of the balloon at this altitude?</p><p>13. A steel sided propane tank that holds 25 L of C3H8 is hooked up to a patio heater. Its initial pressure is 4.5 atm at 23oC. What will the new temperature be when the pressure drops to 3.2 atm as the propane is used to heat an outdoor dining area? </p><p>14. A potato chip company in Dallas is packaging a new product that will be shipped to the ski resorts of Colorado. The bags initially hold 2.3 L of chips and air at a pressure of 0.975 atm and a temp of 24 oC. If the bag expands to 2.9 L in Denver where the temp is 12 oC, what is the pressure in Denver ?</p><p>15. A scientist in the Saudi Arabian Desert is testing a tank design for storing natural gas CH4. He is communicating with a colleague in Wyoming. He needs to be able to talk about the gas in a language that is common to them both independent of the location, so he is converting the data to STP before sending it to his friend in the states. What will the volume of his methane tank be at STP if it is 6,475 L when the temp is 41.5 oC and the pressure is 786mm?</p>