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How much ice would have to melt to lower the temperature of 352 ml of water?
Wiki User
∙ 14y ago
Since you want your answer in grams of ice we need to convert 351 ml of water to grams. This is very easy for water since 1 ml of water weighs one gram. So we have 351 grams of water.
We need to figure out how much energy we need to remove from the water. If you remove one calorie from one gram of water you will lower the temperature one degree C. So water has a specific heat (c) of 1 cal/g/C
You have 351 grams and you want to drop the temp 20 degrees. You must remove
q = mass x specific heat x temp change
q = 351 grams x 1 cal/g/C x 20 degrees= 7020 calories
now we need to figure out how much ice this will take.
Melting one gram of ice requires 79.7 calories dividing we get
ice required = 7020 calories/79.7 calories/grams = 88.1 grams of ice
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoI had to get my old lab book out to answer this. An enthalpy of fusion problem.
You have 1 gram/ml density of water ( I know, ice is less dense, but I am too lazy to look it up ) so you have 355 grams of water. Since you are in grams and want grams; 334 Joules per gram is Heat of fusion for water. Use q absorbed + q evolved = 0 for this problem. Set up.
(grams)(334J/g) + (grams)(4.18J/gC)(6C-0C) + (355g)(4.18J/gC)(6C-25C) = 0
= 78.5 grams of water
( I know. I am too lazy to do the math. Math provided by TI-84 equation solver function. )
Wiki User
∙ 14y ago*Any* amount will lower it.
You need to specify the temperature drop needed.
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Which melts faster salt water or non salty water?
Salt water freezes at a lower temperature, which is why salt is used to melt road ice. In an environment where the temperature is slowly getting warmer as to melt the ice, frozen salt water will melt quicker than ice.
Do all materials melt at the same temperature?
No, materials do not melt at the same temperature. An example would be cooking oils. Some burn at lower temperatures than others.
Does sodium melt in boiling water?
Elemental sodium would melt very rapidly in liquid water of any temperature, and the hydrogen it produces self-ignites.
Does bromine melt at a lower temperature than ethanol?
yes
What would happen if hot water was mixed with ice?
The hot water will get colder and the ice will melt and the water from the melted ice will get to the same temperature as the final temperature of the hot water.
Which melts faster salt water or non salty water?
Salt water freezes at a lower temperature, which is why salt is used to melt road ice. In an environment where the temperature is slowly getting warmer as to melt the ice, frozen salt water will melt quicker than ice.
Do ice cubes melt faster in or outside water?
The temperature of the water and the temperature of the air would have to be factors in the answer. EDIT: Assuming the air and water are the same temperature, it would melt much faster in water. The thermal conduction is much higher.
Will carbonated drinks take longer to melt than water?
No. Carbonated will melt in a shorter time than water. Carbonated drinks have dissolved carbonic acid in them, which will lower the freezing point. (This is similar to how adding salt to ice makes it melt at a lower temperature.) So, if two solutions are frozen at the same temperature and then thawed at the same temperature, the carbonated drink will melt first.
Why do river water levels lower when the temperature gets colder?
Because when the temperature is cold the snow that is at least partially the source of water in the river doesn't melt as rapidly or maybe it doesn't melt at all until the temperature rises.
How would ice cubes lower the temperature of the water?
the temperature of ice cubes are lower than the temperature of the water around them. The heat energy from the water is used up in the process of melting the ice, so the water temperature drops.
Do all materials melt at the same temperature?
No, materials do not melt at the same temperature. An example would be cooking oils. Some burn at lower temperatures than others.
Does ice melt or table salt melt ice faster?
The effect of salt (any soluble material will work) is to lower the freezing point of the water, making it melt faster at a given temperature (or melt at all, if the temperature is slightly below the normal freezing point).
How long does it takes ice to melt?
Ice (from pure water that is) will melt when the temperature rises from 0 degrees Celsius or higher. The only temperature ice will stay ice is 0 degrees Celsius or lower.
If you add salt to water does it make the water hot or cold?
salt doesn't change the temperature of water, it changes the freezing point. salt lowers the freezing point of water so that it will become ice at a lower temperature, therefor melt at a lower temperature which is why salt is put on the roads when it is icy
How fast does ice melt in cold water?
it really all depends on the temperature if the water is warmer than the ice it would melt in atleast 1 min if the water is freezing cold and colder than the ice then the ice will melt in an hour b/c the water will warm up to room temperature if it5 was boiling water it would obviosly melt in a few seconds or 2
Does sodium melt in boiling water?
Elemental sodium would melt very rapidly in liquid water of any temperature, and the hydrogen it produces self-ignites.
Does bromine melt at a lower temperature than ethanol?
yes
