Phase Diagrams and Osmosis
Phase Diagrams and Osmosis 1020
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This 2 page Class Notes was uploaded by Jacob Edwards on Tuesday February 2, 2016. The Class Notes belongs to 1020 at Clemson University taught by Hickman, Thomas D in Winter 2016. Since its upload, it has received 25 views. For similar materials see General Chemistry in Chemistry at Clemson University.
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Date Created: 02/02/16
Phase Diagrams A phase diagram is a graph which phase is stable at different pressures and temperatures Phase changes occur at the lines The triple point is where all three phases exist (stable) Phase Diagram 12 10 8 6 Pressure 4 2 0 0 2 4 6 8 10 12 Time The critical point is where below the point gas exists, but above there’s a supercritical fluid Supercritical fluid acts more like a gas but has the density of a liquid On a phase diagram for H 0 2he liquid/solid line leans back because the liquid is more dense than the solid Change in boiling point Change in freezing point Δbp=ik mb Δfp=ik mf i= Vant Hoff Factor k= depression constant (will be from a table) m= molality (Moles solute/kg solvent) Osmosis Spontaneous flow of solvent through a semi-permeable membrane to areas of a higher concentration π=iMRT π- Osmotic Pressure i= Vant Hoff Factor R= Gas Constant T= Temperature (K) Molarity= moles/liters Mass percent= (Mass of solute/total mass solution) Mole fraction (x)= (Moles of component)/(total moles)
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