Consider He and Ne gases initially at 405.3 kPa and 25.00 °C. He was originally held in a 6.500 L container while Ne was held in a 2.000 L container. Calculate the total pressure if both gases were transferred to a 15.00 L container at 15.00 °C.

Consider a 9.20 L sample of bromine at 132.5 kPa and 25.0 °C. Calculate the temperature at which the volume will be 12.0 L at 121.1 kPa.

Mountain bike tires have a maximum rating of 35.0 psi (gauge pressure). The pressure gauge is made to read 0 psi at sea level which is at 14.7 psi atmospheric pressure. The pressure gauge reading is thus the difference between the total pressure and the atmospheric pressure. A mountain bike tire is inflated while cold to a volume of 8.00 L and a gauge pressure of 32.0 psi at 20 °C. On a normal hot day, the tire warmed to 60.0 °C, and its volume consequently expanded to 8.50 L. Determine if the pressure in the tire exceeded its maximum recommended pressure.

A hot air balloon is inflated to a volume of 34.5 L at a pressure of 678 mmHg and a temperature of 32.0 °C. The balloon rises in the atmosphere to an altitude of approximately 30,000 ft, where the pressure is 425 mmHg and the temperature is −10.0 °C. Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude.