Temperature and Pressure - Online calculator, figures and table showing density and specific weight of pentane, C 5 H 12, at temperatures ranging from -130 to 325 C (-200 to 620 F) at atmospheric and higher pressure - Obtain the water enthalpy of vaporization: 40660 J/mol. WebCalculate the volume or mass of a quantity of gas or liquid. Solving for pv at 100C yields. to Calculate Vapor Pressure startxref stream I couldn't figure it out. % The Clausius-Clapeyron can help here use the reference vapor pressure and 298 K (25 C) for P1 and T1 respectively. The vapor pressure of water calculator is a handy tool that can help in determining the vapor pressure of water and ice. With this vapor pressure calculator, we present to you two vapor pressure equations! 0000001201 00000 n Given: identity of solute, percentage by mass, and vapor pressure of pure solvent. 0000001483 00000 n Calculator 0000001523 00000 n You can rearrange the above equation to solve for P2\footnotesize P_2P2: P2=102325e1.1289=33090Pa\small P_2 = \frac{102325}{e^{1.1289}} = 33090\space PaP2=e1.1289102325=33090Pa. As you see, it's a bit complicated to do this calculation by hand. Hence the AB interactions will be weaker than the AA and BB interactions, leading to a higher vapor pressure than predicted by Raoults law (a positive deviation). We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. If you have the temperature in Centigrade, then you need to convert it with the following formula: The methods above work because energy is directly proportional to the amount of heat supplied. 0000001380 00000 n Vapor Pressure WebPentane - Density and Specific Weight vs. How is vapor pressure affected by temperature? Give it a go! Pentane, C5H12, is a clear colorless liquid with a petroleum-like odor. Rate. Chemistry. ln102325PaP2=40660Jmol8.3145JmolK(1263K1280K)\small ln\frac{102325Pa}{P_2} = \frac{40660\frac{J}{mol}}{8.3145 \frac{J}{mol \cdot K}\cdot (\frac{1}{263K}-\frac{1}{280K})}lnP2102325Pa=8.3145molKJ(263K1280K1)40660molJ.
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