The new volume of the gas is 19.7 ft3.
The relationship between the pressure, volume, and temperature of a gas is described by the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature in Kelvin.
In this case, the number of moles and temperature are kept constant, so we can use the formula P1V1 = P2V2 to find the new volume.
Rearranging the formula, we get V2 = (P1 * V1) / P2.
Substituting the given values: P1 = 112 psig, V1 = 13.5 ft3, P2 = 72 psig, we can calculate the new volume: V2 = (112 * 13.5) / 72 = 19.7 ft3 (rounded to two decimal places).
The probable question may be:
Volume of a gas is 13.5 ft3 and pressure is 112 psig . Pressure is reduced to 72 psig. Temperature remains a constant 61° F The new volume is:
1,006 ft3
4.66 ft3
19.7 ft3
64.3 ft3