Ice cubes in a drink

[jman3232]

Ice is less dense than water, so it takes up more space. So the drink with less ice would contain more.

[Neuge]

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Ice that floats has no effect on level of water as it melts. Ice floats because it is less dense and displaces a volume of water of equal weight. As it melts this evens out.

OP states clearly that glass full of ice is full TO THE BOTTOM, therefore this ice is NOT FLOATING. As ice melts into water it becomes denser and therefore SHIRINKS in volume.

So the level goes DOWN.

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But the buoyancy force of the submerged ice is pushing the ice sticking out of the drink even further out of the drink than it'd normally be.

[Neuge]

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Actually, now that I think about it, the drinks could not have been identically prepared if the almost-melted drink is at the same level as the fresh drink.

[/ QUOTE ]That is the point of the debate.

[/ QUOTE ]Okay, but it still makes the question unanswerable. There's no way to know the volume change on mixing if the mol fractions aren't specified.

[vhawk01]

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Generally, when things get colder they shrink. The most notable exception to this is water; when it freezes it expands. Don't believe me? Test it out... place a can of coke in the freezer over night :P

When water turns into ice, the structure changes and it expands, so when the ice melts, the structure changes back it shrinks.

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This just proves that Coke expands. [img]/images/graemlins/grin.gif[/img]

[carlo]

[ QUOTE ]
Generally, when things get colder they shrink. The most notable exception to this is water; when it freezes it expands. Don't believe me? Test it out... place a can of coke in the freezer over night :P

When water turns into ice, the structure changes and it expands, so when the ice melts, the structure changes back it shrinks.


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Likewise, pipes crack in the winter because water expands when frozen. Glass full of ice topped off with water to the brim will shrink in volume upon melting.

[KipBond]

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After a discussion about which drink contains more liquor, one party proposes a bet: if we were to wait several hours until all the ice in both drinks melted, the older one that is partially melted would have a higher liquid level.

The others argued that the fresh drink that was full of ice would have a higher liquid level after all the ice melted.

This bet could not have been carried out for obvious reasons, but if you have to back one of the two stances, which would you back?

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The drink with more ice will have a lower liquid level after all the ice melts in both drinks. However, that doesn't mean it has less liquor, as the drink with less ice most likely has more water mixed with the liquor.