The ideal gas law relates the pressure P, volume V, absolute temperature T, and amount of gas n. The law is

P = nRT/V

where R is the gas constant.

An engineer must design a large natural gas storage tank to be expandable to maintain the pressure constant at 2.2 atm. In December when the temperature is 4°F (-15°C), the volume of gas in the tank is 28 500 ft³. What will the volume of the same quantity of gas be in July when the temperature is 88°F (31°C)? Use the fact that n, R, and P are constant in this problem. Note also that K = °C + 273.2.