Questions tagged [ice]

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2answers
44 views

How long does it take to cool down a drink with ice?

If I have a bottle or container with X fluid ounces of water at temperature Y (say, fridge temperature or room temperature), and I put ice or ice sticks (composed of water) in it that make up Z fluid ...
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2answers
55 views

Minimal work required to produce ice at room temperature

I'm wondering about the most efficient way of producing ice from water at room temperature. First of all: why, in principle, do we need to put in work to do so, if water gives off energy while ...
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35 views

Sensitivity of latent heat of fusion of ice on temperature and pressure

The enthalpy of fusion is the heat necessary to convert 1 kg of ice to liquid water. According to Wikipedia, this heat equals 333,55 kJ/kg. Does this heat change with the temperature or pressure and ...
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2answers
86 views

Density of ice < water?

In the situation of an ice cube placed in water and eventually melting, it is supposed that natural convection is the process in which heat transfer from water to ice occurs. However, natural ...
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4answers
832 views

How does ice melt when immersed in water?

When an ice cube is immersed in water at a room temperature, how is the thermal energy from the water transferred to the ice cube? Currently I have two answers: Infrared radiation from the water ...
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0answers
25 views

How can I get the height that sits above the waterline of a partly-submerged object?

If I know the density of water (say 1024 kg/m^3) and the density of ice (say 900 kg/m^3), and the volume of an object (say 8 x 10^9 m^3), how can I figure out how much of it is sitting above or below ...
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1answer
82 views

Equilibrium between Steam and Ice

Problem Statement: $15 \ g$ of steam at $373 \ K$ ($100^{\circ} \ C$) is mixed with $25 \ g$ of ice at $273 \ K$ ($0^{\circ} \ C$). What is the final temperature of the mixture. My Question: The ...
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3answers
60 views

water pipes break when temperature goes down, how to estimate the energy involved?

Normally low temperature is associated with lower energy state and high temperature with higher energy state. There is an apparent paradox when a water pipe breaks due to low temperature: when ...
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2answers
343 views

Why does an ice-cube turn faster and faster while melting in water?

Whenever I put an ice-cube into a glass of hot water, so that it melts quickly, and it is initially rotating slowly, I noticed that its rotational speed increases as it melts and 'shrinks'. Why? I ...
2
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1answer
20 views

Can dry fur (or any natural fibre substance) stick to a surface ice?

With the lack of moisture, that would come from the skin, could a natural fibre substance (e.g. polar bear fur) possibly stick to a surface of ice?
2
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3answers
92 views

Could a microwave oven be tuned to defrost well? [closed]

Typical microwave ovens do a lousy job of defrosting because liquid water absorbs their radiation far better than ice. So once a spot melts, it will quickly rise to cooking temperature while the rest ...
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2answers
77 views

Can shining a laser pointer on an Ice Cube melt it?

I heard in videos that if you use a laser pointer (Green if I recall) and point it on a ice cube, that it would cause it to start melting, is that true?
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0answers
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Ice formation in a cavity that was sealed at ambient condition and taken to space

I have a hardware with a cavity that was closed (welded) at ambient conditions (298K, 1 bar Pressure and 50% RH). The hardware was taken to space where the temperature can go down to near zero Kelvin. ...
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0answers
53 views

Ice blocks melting outdoors [closed]

I have a question, that is not related to anything academic. We are planing a festival in winter, that will have some stage set up of ice blocks. There will be several big rectangular prisims of ice, ...
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0answers
24 views

Why does ice form when you break the seal on a very cold bottle of water? [duplicate]

I put a sealed bottle of commercially available drinking water in a freezer and let it get really cold, but not frozen solid. The water is not carbonated. Then I remove the bottle and place it in a ...
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1answer
572 views

Turning water to ice in vacuum

My 9yr old is inspired to try to make ice with a vacuum after seeing an exhibit do just that at room temperature at the Exploratorium in San Francisco. He's using a motorcycle vacuum brake bleed pump ...
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1answer
60 views

What wavelength of light has the greatest rate of reflection off of ice?

We are using a camera that is nearly flush against frosted ice (not perfectly clear, but pretty close). We are currently using white LED's, but very little of the light gets reflected back into the ...
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0answers
192 views

Can steam freeze via adiabatic expansion?

Context: At the end of animation movie Steamboy, a huge steam engine's pressure vessel breaks, which results in the escaped steam freezing to ice. I've been thinking about this -- is it really ...
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3answers
2k views

Does the shape of ice affect the amount of heat required to melt it

Is the amount of heat required to melt a $0^\circ C$ 10cm x 10cm x 10cm cubic ice equal to the amount of heat required to melt $10^{15}$ piece $0^\circ C$ 1$\mu$m x 1$\mu$m x 1$\mu$m cubic ice ? I ...
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3answers
915 views

How fast can water from a lake be frozen?

Warning: this question contains spoilers for the first episode of 2018 TV series Lost in Space by Netflix. On the series, the Robinsons spaceship, Jupiter, falls on a planet, and it’s submerged in ...
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2answers
43 views

What is the enviroment in which water will come out of an ice fishing hole?

I have watched some videos on YouTube of people cutting holes in ice and water not just finding equilibrium in the hole, but water actually coming out of the hole along with many fish. There has to be ...
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1answer
447 views

Final temperature of ice and water [closed]

My answer doesn't seem likely but I can't see where I've gone wrong: Q: Ice of mass 0.125kg at -5 degrees is added to water of mass 0.25kg at 8 degrees. Calculate the final temperature of the water ...
3
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1answer
579 views

Melting of ice on applying pressure

Can someone explain why ice melts on increasing pressure based on Le Chatelier's principle? By the principle, ice will try to oppose increase in pressure. It can do so by increasing volume right? But ...
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2answers
85 views

Icy roads while the temperature is above 0 Celsius?

The temperature last night in my suburb and in Montreal was 4 Celsius at 9 P.M. . The snow and rain of the day had melted and the roads were damp but not icy. This morning at 5 A.M, the temperature ...
195
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1answer
16k views

Strange ice found in my garden

This morning I found a really strange ice formation in my garden. I can't figure out how it appeared, because there was nothing above. The night was particularly cold (Belgium). To give an idea, it ...
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2answers
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Why was there frost on the inside of my windshield? [duplicate]

I usually start my car remotely and let it warm up before I leave for work. This morning I forgot to start my car beforehand, so I had to scrape the ice off the windows. I was surprised to find frost ...
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1answer
125 views

What was the rainbow like object I saw in ice crystals this morning?

This morning, while driving to work, I saw a rainbow-colored pillar formed by ice crystals frozen out of furnace exhaust from chimneys. It was very broad - a bit wider than my (large) hand at arms ...
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1answer
397 views

Fastest way to melt ice cubes in glass of water

I'm in a restaurant and order a glass of water. What I get is about 50% water 50% ice cubes. So, after finishing my water, I'm left with half a glass of ice cubes. I'm in a hurry, so need to leave as ...
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1answer
51 views

Tongue and frozen metal [duplicate]

I understand that when you put your tongue on frozen metal, your tongue sticks to the metal but how does having a layer of ice covering the metal prevent your tongue from sticking?
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2answers
116 views

Will a vinegar and water mixture prevent ice from forming?

A trivia game I was playing made the claim that a vinegar and water mixture can be used to melt ice. Google lead me to Snopes.com, which claims that the mixture will prevent ice from forming instead ...
116
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2answers
11k views

Why does ice cream get harder when colder?

What would seem to be a silly question actually does have some depth to it. I was trying to scoop out some of my favorite soft name-brand ice cream when I noticed it was frozen solid, rather than its ...
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2answers
182 views

Running vs. walking in slippery condition

We are experiencing warmer weather than normal, which is causing the snow to melt and re-freeze daily. This has led to very slippery conditions. A few years ago, I was running in similar conditions, ...
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1answer
56 views

Can ice burn you from it being hot (not a frost bite sort of burn)?

The phase diagram of water implies that at a high enough pressure (100 kbar) that very hot 300°C ice can exist. Researching about ice burning someone just nets results on frost bite (which is ...
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2answers
3k views

Why are some parts of this ice block cloudy and other parts clear?

I had a sprain in my leg a few days back. The doctor recommended dipping my foot alternately in ice-cold and hot water to aid blood circulation. It is here that I discovered something interesting. ...
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0answers
352 views

Volume expansion coefficient for freezing

It is a well known fact that water expands when it freezes, and here's one of the explanations I found on Physics SE: Why water expands when freezes? "The expansion upon freezing comes from the fact ...
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1answer
33 views

Wind erosion of Ice

I saw this video on Youtube https://www.youtube.com/watch?v=Hs5iXGJVkb8, but I really don't how answer this question: How is it possible that wind can cause ablation of ice? I know that ice can ablate ...
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2answers
285 views

Frozen Pepsi when opened began to fizz and release lots of $C O_2$ and a thick sugar syrup mixture

I left a bottle of wild cherry Pepsi in the freezer to cool and forgot about it over night. When I remembered to check it the Pepsi was entirely frozen and the bottle it was in thankfully did not ...
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3answers
375 views

Volume of melted polar ice caps

If (or rather when) the polar ice caps melt, will they occupy more, the same or less volume? Somehow all options seem possible to me. I don't assume they are just big ice cubes floating on the poles....
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4answers
18k views

Does the sea level increase if an iceberg melts?

It was claimed that if an iceberg melts in the ocean, the sea level won't change as the ice displaces as much water as there will be melted water. The other claim was that the sea level should rise ...
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1answer
82 views

Feynman Lectures I 1.2 - Note on a Statement

In the Feynman Lectures, Richard Feynman makes the following statement: The particular crystal pattern of ice shown here has many “holes” in it, as does the true ice structure. When the ...
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0answers
87 views

Why is this ice so stubborn?

In central India summers are extremely hot. So in order to stay hydrated we (a.k.a. me and a couple of friends) have been advised to carry with ourselves a refresher (which is basically a flavored ORS ...
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4answers
3k views

Which would melt faster on the sidewalk, equal volumes of snow or ice?

Whilst walking back from class, I noticed the piled snow on the sides of the street still hadn't melted after a week despite it being sunny and generally warm $(15°C-18°C)$. "If that snow was ice, ...
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2answers
8k views

Why do ice cubes shrink in the freezer?

OK before you all yell "EVAPORATION", I know that's the boilerplate answer, but why and how. Back in high school we were taught water, and most other elements and compounds, have three states, solid, ...
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1answer
63 views

Ice melting equation units don't match?

I am working on a model to simulate algal growth in Antarctica, and want to incorporate surface ice melting. I found this equation for melting: $$ \frac{dV}{dt} = \frac{-kAT}{\rho L_f}$$ where $V$ is ...
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1answer
62 views

Can any one explain the physical concepts to the process of making ice without refrigeration?

as stated in https://books.google.com.br/books?id=Kz4FKczHm2gC&pg=PA643&lpg=PA643&dq=ice+india+Sir+Robert+Barker.+F.R.S.&source=bl&ots=ngGVcv3jQr&sig=...
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1answer
2k views

Ice melts slower in salt water?

We did a little kichten experiment today where we put ice cubes in glasses of water. We had one glass with normal tap water and 5 glasses which increasing concentrations of salt water. My hypothesis ...
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1answer
1k views

Does water expand uniformly in a rigid container that is open on one end?

Lets say there is a semi-rigid container (made of plastic, say). It is filled 90% full of water and put in a freezer standing upright. The top of the container is open. When the water freezes, my ...
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1answer
116 views

What Causes Slanting Pointed Ice Spikes to Form? [duplicate]

Ice spikes are fairly rare but there is a general consensus about how they form from extruded pressurized water in containers subjected to below freezing conditions. This morning as I fed my dogs I ...
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0answers
266 views

can freezing water burst a short pipe if the pipe is open at both ends?

My question: If a thin-walled copper or brass pipe is open on both ends (let's dimension it at 60 cm long by 8mm inner diameter, as an example) and is filled with slightly salty water (estuarine ...
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1answer
95 views

Physics of Ice books

I am looking for some references for books on the physics of ice from a condensed matter perspective. Does anyone know any good advanced books on the subject?