Extracted text: 2. The compressed air tank has a volume of 0.8 m. The temperature is 20°C and the atmospheric pressure is 101.35 kPa. When the tank is filled with air at a gage pressure of 190.74 kPa, determine the density of the air and the weight of air in the tank. Hint: Ideal gas law should be used. R=287 m?/s?K