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How many phase rule variables must be specified to fix the thermodynamic state of each of the following systems? show how you determine these.
(i) a sealed flask containing a liquid ethanol-water mixture in equilibrium with its vapor.
(ii) a sealed flask containing a liquid ethanol-water mixture in equilibrium with its vapor and nitrogen.
(iii) a sealed flask containing ethanol, toluene, and water as two liquid phases plus vapor.
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How many phase rule variables must be specified to fix the thermodynamic state of each of the follow...
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