When ice melts in coke... does the level rise, decrease, or stay the same?

Question

if you know please answer. if you dont then please dont give the wwrong answer. i have searched on the internet and i found a few different answers. one place said it stays the same and anotehr place says it rises.

Answer 1

It stays the same because the ice displaces it's weight in the coke so when it melts there is no change in the level..........

Answer 2

Is the ice submerged in the coke or is it stacked in the glass over the top of the water level? Ice has a lower density than liquid water. So submerged ice will be denser when it melts, and thus the level will go down. If the ice is above the water line, then the level rises as it melts just because there is more water in the glass. This is important in global warming because much of the ice is above the water surface, so when it melts, the ocean level will rise.

That might explain the confusion you have found on the topic. But if the ice is floating - some above the surface balancing the buoyancy of the ice below the surface, I don't think the level would change much on melting.

Answer 3

WildOtter is correct, but just some clarification. Fill the cup with ice cubes and add just a little Coke. The ice is resting on the bottom of the cup, not floating. As the ice melts, the liquid level rises. That's the scenario comparable to the melting of glaciers and polar ice caps and the resulting increase in ocean water level. If global warming melted only ice that was floating, the oceans would not rise.

Answer 4

obviously the ice dispalce water equal to is volume not weight. for this point and after using density formulas we can calculate the weight etc.

now the ice cube has a specific volume, which is larger than the volume of the same amount of water in room temperature. therefore when the ice melts there will be a solution of ice cube water and coke. the volume will be less since the ice cubes will be melted therefore the level will drop and will never rise.
the easiest thing to do is measure (say 10ml of water) and produce some ice cubes. then in a large glasswith a scale on it pour 10ml of water and do the same using the ice cube made from initialy 10ml if water and see what happens.

Answer 5

Coca-Cola is almost pure water, so the liquid level in the glass of Coke over ice will not change as the ice melts. Because of the dissolved sugar, the Coke is slightly denser than water, but that does not affect the answer.

Answer 6

Since water expands when it freezes and gets bigger, then when Ice melts in the drink, it should shrink from the size of the ice getting smaller. But if the ice is sticking out of the drink and it melts down into the level of the drink it would most likely stay the same.

Answer 7

Since ice generally floats in my Coke, the coke level will rise as the coke melts. That's why people living near the coast have something to worry about when the glaciers start melting from global warming.

Answer 8

the best way to answer your question would be to fill a cup up with coke and ice and mark a line at the level of coke in the cup and when the ice melts check where the coke is in comparrision with the line you origanilly marked

Answer 9

you have to do some calculations to be sure. first find the density of ice and water(google). then you'd have to find how much of the ice would stick out. just use a hypothetical ice cube, doesn't matter the size. do this using basic boyant force equations (which i don't know off the top of my head) then using this data, find out how much volume the ice takes up minus the volume of the ice in the air. then take that same mass of ice and the density of liquid water, and find out if it has a smaller of larger volume.

Answer 10

I think the carbonation being released has to factor in. the ice melting makes the level rise, but the carbonation would make it lower I would think --though probably not by much.

best of luck.