【I see-61】Let’s see if you can do it
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This post was last edited by *nht1 on 2016-12-6 at 21:53. 1. A reaction vessel with a volume of 1 L is filled with 0.5 L of water at 20°C (leaving 0.5 L of volume occupied by air). Oxygen is introduced to raise the pressure inside the vessel to 2.5 MPa (G). The vessel is then sealed, and the water is heated to 200°C (where the saturation vapor pressure is 1.56 MPa (A)). What is the pressure inside the vessel at this point? 2. 0.5 L of water at 20°C is added to a reaction vessel with a volume of 1 L. The vessel is sealed, then the water is heated to 200°C, and X g of oxygen is introduced. What is the pressure inside the vessel at this point?
This post was last edited by dt7777777 on 2016-11-4 09:37: 1 2.6*473/293+1.56=5.757 2 Same.
It should actually be slightly higher than this; as the temperature rises, some of the air dissolved in water will come out
;P Person upstairs, you forgot about the increase in the gas phase volume caused by the evaporated water