What is the volume of the gas at 10KG of water at -0.098MPa and 50°C? How to convert it. I hope someone knowledgeable can answer!
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What is the volume of the gas at 10KG of water at -0.098MPa and 50°C? How to convert it. I hope someone knowledgeable can answer!
This post was last edited by ylb913 on 2015-9-21 at 16:38. The saturated pressure of water at 50 degrees is 0.012 MPa; the pressure in the gas phase is -0.098 MPa, which is gauge pressure. Converting this to absolute pressure gives 1 – 0.098 = 0.012 MPa, indicating that the partial pressure of water in the gas phase is 100%. The volume depends on how large your gas phase space is There is as much volume of saturated water vapor as there is of gas space.
Treat water as an ideal gas, and calculate using the ideal gas law PV=nRT; the unit for T is K.
The pressure is very low, so it can be treated as an ideal gas; according to PV=nRT, it’s approximately 125 cubic meters
This vacuum level is also quite low; it’s an absolute pressure of 3300 Pa