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How does the minimum(coldest) temperature that a supercooled solution of ethanol and distilled water depend on the concentration?
If the solution is really "supercooled" (i.e. T<Tf) it is difficult to tell. If you merely want to determine the freezing point of a water solution to which some ethanol has been added, you can estimate this using the value of Kf(H2O) to calculate the freezing point depression. If the solution is mostly ethanol, you could do the same thing, but you would need to know what Kf(ethanol) is.How does the minimum(coldest) temperature that a supercooled solution of ethanol and distilled water depend on the concentration?
The thing is that im trying to verify it experimentally. Apparently there is a supercooling curve that i have achieved only once. Any experience with a similar experiment? The solution reaches a low temperature and if done rightly, in a couple of second the temperature should suddenly rise indicating that the solution has frozen.If the solution is really "supercooled" (i.e. T<Tf) it is difficult to tell. If you merely want to determine the freezing point of a water solution to which some ethanol has been added, you can estimate this using the value of Kf(H2O) to calculate the freezing point depression. If the solution is mostly ethanol, you could do the same thing, but you would need to know what Kf(ethanol) is.
The thing is that im trying to verify it experimentally. Apparently there is a supercooling curve that i have achieved only once. Any experience with a similar experiment? The solution reaches a low temperature and if done rightly, in a couple of second the temperature should suddenly rise indicating that the solution has frozen.