A sample of methane gas, CH4, occupies a volume of 44.1 L at a pressure of 5.28 atm. What volume will the gas occupy if the pressure is lowered to 2.47 atm? A sample of a gas occupies a volume of 1100 mL at 75ºC and 0.17 atm. What would be the new volume if the temperature decreased to 45ºC and the pressure increased to 1.90 atm? An expandable balloon contains 1500 L of He at 0.829 atm pressure and 18 ºC. At an altitude of 22 miles (temperature 4.4 ºC and pressure 3.4 torr), what will the volume of the balloon be?