Whether water level in a glass will change, if solid alcohol in it,melts.?
445730
Yes, because the alcohol has a different specific gravity from water, and the alcohol will change the volume it occupies as it melts.\n\nIf however it were an ice cube floating freely in the water, the level would not change when it melts because the specific gravity is the same and the melted former-ice-cube-water will therefore exactly fill the volume of the ice cuibe that was submerged when floating.
866404
It doesn't change. The ice has already displaced all the water it's going to. You can try this yourself. Fill a glass with ice. Now add water to the very top. When the ice melts, the glass will NOT have overflowed.
239892
Melting speed is proportional to surface area (more or less).  If we assume a cubical block of ice then the surface area is 6x^2, where x is the length of a side.  However the material melts away volumetrically, which is x^3.  So the rate at which the cube melts is proportional to the ratio of surface to volume, or 6/x.\n\nSo suppose we have a cube with side of length 10.  The surface area is therefore 600, and the volume 1000, and the ratio 3/5.  Later on after it's melted a bit the length of a side will be 5, the SA 150, the volume 125, and the ratio 6/5.  \n\nThus the "melting rate" increases as the cube gets smaller so the decrease is geometric, not linear.\n\nGood question  :)
352065
some is reflected by the glass, and some passes straight through.  A tiny part will go towards heating up the glass itself, as it is absorbed during its transition throught the glass.
353454
Depending on it's composition, it can have a melting point of about 1400-1600 °C. However, there are glasses that will melt at lower temperatures but those are not common among commercial nor industrial usage.
1096750
1st -- tips of the hat to in-janier and lewis_brown for stopping by long enough to give the basic physics and most of all to Lewis for politely informing us that glass is not a liquid.  \n\nGlass is a liquid?  Pull-eeze!  How in the world do you come up with that one, people?  \n\nGlass "flows" -- ???  \n\nGlass flows in liquid state -- only.\n\nGlass is solid until melted.  Then and only then it's liquid.\n\nGlass melts at 2600-2900 °F (1425-1600 °C) depending on its composition.\n\nWhere on Earth do you think glass is liquid or flows at bench temperature?\n\nAnway, I originally stopped by just to ask the asker if he or she could see through black glass (or any other opaque glass)?
1025160
I'm not sure why you asked twice, however, i'll try for a best answer on both of them lol.\n\nIf i understand your situation correctly, you have a pond (with no inlet or outlet), a boat with no leaks floating in the pond, and ice inside the boat.\n\nThe water level of the pond will not change at all as the ice melts. The water level in the pond would only change if mass were added or removed from the boat. A boat displaces an amount of water equal to the total weight of that boat. A change in ice melting from ice to water does not change its weight. Therefore no change.
874149
Yes.  Adding salt to frozen water lowers the melting point.  \n\nConsider that snow and ice are really the same thing, in different mass quantities - water in solid state due to ambient temperature.\n\nBest to you.
204277
No, nothing has to melt before it evaporates.  The factors that control the states of matter are pressure and temperature. in a vaccum water will evap at cool temps, in high temps water will evap, in extreme temperatures under extremes vac. solids are liable to sublimate into gas.  It can happen under the right conditions, solid CO2 goes from solid to gas at room temp under 1atm of pressure
473094
Glass is more dimensionally stable - it doesn't expand or contract when the temperature changes - and it can be polished to a very smooth surface.   The finish is a very very thin layer of metal.\n\nRead "The Perfect Machine" by Ronald Florence if you want to learn more.
646721
It was believed that if the mug is thicker, it will hold hotter liquids and so mugs were thicker then. This is not true because being thicker, the inner wall of the mug will expand much faster than the outer wall. This results in the mug cracking.\n\nNowadays, mugs and glasses have thinner walls. This results in the inner and outer walls expanding at rates that are closer and so the material will not crack.
567251
It should not have any affect of the outcome.\n\nSperm damage from Alcohol takes a lot of alcohol over a long time.
745528
Interesting theory, however water expands when it freezes.  It has no problem melting under pressure.
339248
Due to sublimation, it will weigh slightly less. However, in a closed system (say you sealed the cup in an airtight box and weighed that before and after the ice melted) there would be 0 change in mass due to conservation of mass/energy.
953209
Yes . but when the reaction begins, these temperatures will equilibrate\n\nIt is sometimes not possible to react if one compound is solid and the other is liquid
1024294
When you dissolve any substance the state will be change either from solid to liquid or semisolid but when you dilute the power of the substance will be reduce usually with water.
930166
Even so water will still evaporate over time if it is in a room with a  high temperature. To obviously stupid answer is somebody drank it!!!