Question 7 A ball having 7.62 cm radius contains air (R = 53.3 lbf – ft/lbm - R) at 235.3 psig and 550R. After some of the air was used, the pressure was 200 psia and the temperature was 85°F. The volume that the used air will cubic inches(nearest tenths). %3D occupy at atmospheric pressure and 80°F is

Question 7 A ball having 7.62 cm radius contains air (R = 53.3 lbf – ft/lbm - R) at 235.3 psig and 550R. After some of the air was used, the pressure was 200 psia and the temperature was 85°F. The volume that the used air will cubic inches(nearest tenths). %3D occupy at atmospheric pressure and 80°F is