Atire with inner volume of 0.0250m^3 is filled with air at a gauge pressure of 36.0 psi. if the tire valve is opened to the atmosphere, what volume outside of the tire does the escaping air occupy? some air remains within the tire occupying the original volume, but now the remaining air is at atmospheric press

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm