Ice Definition and 980 Threads

Homework Statement A glass containing water is initially of temperature 20oC. The mass of the glass is 100 g and of specific heat 0.16 cal/g-co and water is of mass 200g. If 5 cubes of ice each of mass 15g will be added to the glass of water, solve for (a) The temperature of the mixture. (b)...

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SVP = saturated vapour pressure. I understand that the SVP over ice is less than that over water for temperatures less than 0C. I'm doing an exam question which asks 'what is the significance of this difference?'. My first guess is that in clouds with both ice and water present, this...

hi I am new here a query about heat transfer- there are layered walls with different conduction coefficient. the last layer is maintained at freezing point while the first is at room temperature my question is will the ice not melt at the last layer considering that its temperature is...

I am here in the northwest, where we are going to have a huge snow storm, and I'm wondering: How long would it take rain, falling at 0.3 inches per hour, to melt 6 inches of snow, and 1 inch of ice underneath said snow? Thanks, Jake

Lets say I have some tape with powder copper inside the glue of the tape (doesn't have to be copper). The goal is to heat the tape so that its capable of melting small amounts of ice on the surface of the tape. The tape is wrapped around a surface about 3" tall 1/4" thick and 8" wide. On the...

I'm trying to find information on whether there has been summer ice at the North Pole the last few years. I've found a couple old articles that indicate scientists predicted no summer ice. Did this in fact happen and is it predicted again for this coming summer? Does that mean the North Pole...

1. 1 kg of melting ice and 1 kg of boiling water are mixed: Which temperature will have the mixture when all ice is liquefied ? I don't know if there is formula The attempt solution: I don't know this question is really hard there are not enough information

Homework Statement Ice of mass 2 kg at -20 degrees C and 5 kg water at 20 degrees C are mixed. Find the net amount of water in the container. (Specific heat of water=1cal/g degrees C, specific heat of Ice = 0.5 cal/g degrees C, latent heat of fusion=80cal/g degrees C) Homework Equations...

1. How much heat ΔQ is consumed to raise the ice temperature from Ti = -20 Celsius to meltingpoint Tf = 0 ? how long does it take ? 2. dQ/dt = H = 300 W dQ = cmΔT 3 I got it to be 2.49 * 10^-21 J. Is it right ?

1. Homework Statement Calculate the heat energy required to convert 0.10 kg of ice at -10 degrees Celcius into steam at 100 degrees Celcius. 2. Homework Equations E = m c dt (1) where E = heat energy (kJ) m = unit mass (kg) c = specific...

Homework Statement If you submerge a 3cm cube of ice in cup of water, with what force will the ice float up to the surface Homework Equations ρgV, F=ma, ρgh The Attempt at a Solution I thought to draw free body diagram of vertical forces with mg of ice cube and ρicegAhtop surface...

Homework Statement A copper rod of length 0.20 m and cross-sectional area 6.00 10-2 cm2 is connected to an iron rod with the same cross section and length 0.28 m (the figure below). One end of the copper is immersed in boiling water and the other end is at the junction with the iron. If the...

Dear PF, Is ice compressible? What its compressibility... or compressibility relatively to water compressibility Thanks much

Homework Statement An ice-water mixture has a mass of 180g and is contained in a 100g aluminum calorimeter When 35g of steam at 100 degree Celsius is condensed in the water, the temperature rises to 50 degree Celsius. How much ice was in the container initially? The heat capacity of water is...

Homework Statement A steel bar of rectangular cross-section, with height a and width b (into the paper), is placed on a block of ice with its ends extending a little beyond the ice, (ice has a length c). A weight of mass m is hung from each end of the bar. The entire system is at 0 degrees...

"Whiskey Stones" - ice, stone, steel: which is best?? The conundrum: I'd like to purchase the most effective cooling item for my evening dram of scotch, or Manhattan bourbon, or Black Label, or... Where was I? Seriously, I am intrigued by the growing popularity of "whiskey rocks" - an item to...

Homework Statement Question no. 4 in this document (there's a helpful picture, too): Homework Equations The Clausius-Clapeyron equation: \frac{\delta p}{\delta \tau}=\frac{l}{\tau ∆v}, where v is the volume per unit mass, i.e., the inverse of the density. The Attempt at a...

Amazing footage by BBC Nature, I had to share:

Homework Statement 1. Homework Statement Calculate the entropy change when 1 mole of ice at 268 K is melted to form water at 323 K. The heat capacity of ice is 3.8 J K-1 kg-1 and that of water is 75 J K-1 kg-1. The enthalpy of fusion of ice at 273 K is 6.02 kJ mol-1. I know the entropy...

Homework Statement Calculate the entropy change when 1 mole of ice at 268 K is melted to form water at 323 K. The heat capacity of ice is 3.8 J K-1 kg-1 and that of water is 75 J K-1 kg-1. The enthalpy of fusion of ice at 273 K is 6.02 kJ mol-1. I know the entropy change by the melting of...

Hi i am a brand new member to this forum i am studying to be a power engineer and thermodynamics is one of the courses I need to succeed. If i could get help with this problem it would be much appreciated. Homework Statement A perfectly insulated box contains 3.50kg of dry saturated steam...

Homework Statement For the problem below I was able to work out part (i) but I am stuck on working out part (ii) I tried using information given but was unsuccessful. Can anyone help me out? An insulated copper container of mass 0.250 kg contains 0.350 kg water. Both the container and the...

Homework Statement one gram of ice at 0 degree C contracts in volume by 0.091cc on melting. 9gm of a metalis heated to 200 degree C and dropped into and ice calorimeter. The decrease in volume was found to be 0.0182 cc. Calculate the Sp. heat of the metal (ANS:0.09cal/gmC) Homework...

Specific & Latent Heat - Heat required to turn water in Aluminum Tray --> Ice Homework Statement 200 g Water (l) is contained in an Aluminum ice tray that has a mass of 340 g. Both is at 18°C. How much heat (Q) must be removed to turn the water into ice at -15°C? Aluminum mAl= 340g...

as per the title. does anyone know?

Homework Statement An amateur skater of mass M is trapped in the middle of an ice rink and is unable to return to the side where there is no ice. Every motion she makes causes her to slip on the ice and remain in the same spot. She decides to try to return to safety by throwing her gloves of...

Homework Statement An ice cube, weighing 100g, is dropped in 1kg of water at 20 degrees C. Does the ice melt? If not, how much remains? What is the final temperature? The latent heat of fusion of ice at 0C is 6.025 kJ/mol, and the molar heat capacity of water is 75.3 J/K mol Homework...

Homework Statement you are making a circular turn in your car when you hit a patch of ice causing friction to be zero, while the car is on the ice it: a continues to follow the circular path but with a larger radius than before b moves along a path that is neither straight or sircular c...

Homework Statement A copper calorimeter can with mass 0.466kg contains 00950kg of ice. The system is initially at 0.0C. If 0.0350kg of steam at 100C and 1atm pressure is added to the can, what is the final temperature of the calorimeter can and its contents? Homework Equations Q=mL Q=mcΔT...

Hi, I'm new on this forum. We have some science days in our school, and there is a big 1.5x1.5x1.5m ice cube melting. There is a contest who will guess the aprox. time that it takes to melt. I think it will be more than two days, but I would like to get a more concrete answer somehow... :)...

No, not talking about putting a chunk of ice in front of a fan! My father remarked this afternoon, "all that ice you make uses a lot of electricity!" I put ice in my drinks, drink it all down, and my icemaker only makes what it needs. When it's full, it stops. His recommendation was to use...

I just watched a day after tomorrow for the first time today, am I really hit me. Can A ice age occur overnight?

Problem: If 5.0 g of steam at 100 deg C interacts with 20 g of ice at 0 deg C, what is the final temperature of the resulting 25 g of water? My thinking on the solution: I figure I can use the equation delta Q = mC(delta T) to calculate the final temperature, where m = 25 g...

Calculate how long it will take for the ice to melt?? Homework Statement A chilly bin has walls 5.90 cm thick and the total area of the walls is 0.700 m2. The chilly bin is loaded with 2.00 kg of ice at 0.00 °C and stood on a rack so that its entire surface is in contact with the air. The...

I just got to know about spherical ice recently, and chanced upon this website. http://www.glace-ice.com/ And I can't help but wonder. Sure, it's pretty. Yes, it's very clear ice. But maximum cooling and minimum dilution? Ice cools the drink by conduction. So the rate of heat transfer is...

Homework Statement How can ice sublimate at atmospheric pressure? Looking at the p-T diagram for water, the sublimation curve does not extend above a tiny fraction of atmospheric (triple point of water, p = 4.58mm Hg). Yet my ice box tells a different story. Homework Equations...

Homework Statement your 200 gram cup of tea is boiling hot. About how much ice should you add to bring it down to 65C? Ice is initially at -15C. The specific heat capacity of ice id .5cal/gC The Attempt at a Solution So the ice we add needs to absorb 7000 calories of heat. Heat...

My 21' above ground pool in northeast Ohio freezes each winter. There is 52" of water in it now and that is 3" below the wall caps. I usually don't have it this full, but we've had a LOT of rain lately. I was told to drain some water out of it so that the rising ice will not destroy the top...

Hello, Please forgive my ignorance, although bright, I was a lousy student, & never took physics in school. I find it frustrating when relatives & friends are uncertain as to how to respond to questions like those below, so your educated reply would therefore be all the more appreciated...

I think everyone sees this happen. You buy a pack of ice from the store, it's all nice and loose and easy to use and stays that way in the storage bin. You bring it home and if you don't use it, you put it in the freezer. For a couple of days the ice stays nice and detached and usable. However...

what happens to your tongue when you lick an aluminum ice cream scraper just after it has been used?

What happens at -273 oC? (everything under 1atm) I know about the cooling curve but just wondering what would happen to substances at absolute zero- does the temperature keep reducing/get harder? Also, how do gases stay in gaseous form in outer space? Many thanks in advance! :)

If the polar ice caps were to melt... wouldn't the sea levels decrease? Water ice is less dense than liquid water, so the volume (and displacement of liquid water) is greater when its frozen. But when you melt that, the volume decreases, and some of the water that was initially displaced by...

Hello all... I am new to posting, but have followed posts on here for a while and finally got myself stumped, so I'm looking for advice and thoughts before I go over my project budget only to find I over/under estimated something. I am currently building a biomass fueled electrical...

Hello no answer is given to this problem so could somebody please tell me if the answer is correct? thanks so much! Two ice skaters, Paul and Tom, are each holding on to opposite ends of the same rope. Each pulls the other toward him. The magnitude of Paul's acceleration is 1.25 times...

Homework Statement The mass of the piece of ice is 0.25kg. Heated by an electric heater (assume there is no loss of energy to the surroundings) Started at -30°C at 0seconds After 150s the ice cube is -10°C Homework Equations Q=mL_{f} \Deltat=Q/P The Attempt at a Solution...

Okay, so I just recently purchased a book from Barnes and Nobles on Physics. I've taken a university level Physics course, so I have a general knowledge of some concepts. I was reading something that I'm not sure holds water. Here's the problem: Two men are standing on a sheet of ice...

Before you watch the video, give your answer here... and why you think it's correct.

Ice block on inclined plane-- easy problem! I'm pretty sure I did this correctly, but my answers are different from those given in the back of the book (which our TA warned us were frequently incorrect), so I thought I'd ask you guys if I made any obvious mistakes. Homework Statement A...