The pressure gage on a 2.5-m3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28.5°C and the atmospheric pressure is 97 kPa. The gas constant of air is R= 0.2598 kPa-m3/kg-K. P; = 500 kPa V = 2.5 m TC The amount of oxygen in the tank is kg.

A closed assembly contains 2lg of air at an initial pressure and a temperature of 140 kpa and 210 celcius. If the volume  of the system is doubled and the temperature drops to 37 celcius determine the final pressure of air.

7. In a sturdy closed container with a volume of 0.3m ^ 3, there is a wet steam of 300 kPa in pressure. When the total mass is 4 kg, calculate the mass and volume of liquid and water vapor, respectively. What is the pressure in the vessel when heated to 300C? P-v diagram or T-v diagram should be shown and the corresponding status and process should be indicated.

The pressure gage on a 2.5-m³ oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 29°C and the atmospheric pressure is 97 kPa. The gas constant of air is R = 0.2598 kPa.m³/kg-K. 0₂ V = 2.5 m³ T°C P₁ = 500 kPa The amount of oxygen in the tank is 2.68 kg.

A two-compartment vessel contains fluid in each section. For the first compartment, the fluid density is 1.257.9 kg/m³ and for the second is 627.2 kg/m³. The partition is removed, allowing the fluids to mix. Determine the specific gravity of the mixture if the fluid masses are equal. answers must be in 3 decimals