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How much ice to lower the temperature of a gallon of 90 degree F water by 1 degree F?
Wiki User
∙ 11y ago
Depends on the temperature of the ice.
Wiki User
∙ 11y ago
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If a cup of water of temperature 50 degree celsius is mixed with another cup of water of temperature 50 degree celsius the final temperature of the two combined cups of water will be 100 degree?
No, as both the temperatures are the same, you will get only 2 cups, each 50 degrees. You have to heat the cup to get 100 degree.
When water changes from liquid to Gas?
Water vapors begin to condense when T drops below 100 degree Celsius. This is true under the normal conditions (sea level atmospheric pressure). On higher altitudes, there pressure is lower, vaporization/condensation temperature will be lower.
Why does triethylamine water system has lower consolute temperature?
triethyl amine in water system,it was cool in ice bath,when it cooling temperature is decreases so misibility occurs so graph will come lower consolute temperature
What is the effect of soluble volatile substance on the boiling point of a water solution?
A soluble volatile substance will lower the boiling point of a solution. The volatile substance will boil at a lower temperature than the water component, thus causing the solution to boil at a lower temperature.
Why does tap water freeze before salt water?
Short Answer:As you lower temperature, pure water freezes first at exactly 0 degreesCentigrade or 32 degrees Fahrenheit. (That is part of the definition of those temperature scale.)When water has any impurity in it, the freezing temperature is lower. This is called "freezing point depression."Explanation:People say, "Pure water freezes faster than salt water," but what is more accurate is to say that salt water freezes at a lower temperature than pure water. If you cool two identical samples of water, one pure and one salty, then temperature of salt water has to be lowered further to freeze, so it takes longer.Tap water or any form of fresh water usually has such a small quantity of impurities present that the decrease in freezing temperature is a tiny fraction of a degree and not noticeable without specialized equipment.Once you get to a percent or two of impurities in water, you start to see a degree or two change in freezing temperature. The specific change depend on what impurity you put into the water, but the more you put in, the lower the freezing temperature gets.The cause of freezing point depression is a result of the disruption of the perfectly regular arrangement that water molecules want to make when they form solid crystalline water, i.e.pure ice. Basically all pure solids, want to form some kind of perfect crystalline arrangement of their constituent atoms or molecules when cooled to a low enough temperature, i.e.the freezing temperature. Such a perfectly regular arrangement is disrupted by impurities, large impurities or charged impurities being more disruptive for water. As a result of the disruption the temperature must be lowered further before the energetics and the forces between particles becomes favorable enough to form the solid.So, impurities in almost any material will cause a lowering of the temperature at which the material changes from a liquid to a solid.
If water weighs 8.34 pounds per gallon how much Btu to raise the temperature of 4 gallon of water from 70 degree Fahrenheit to 72 degree Fahrenheit?
what is the answer to this
How many BTU are required to lower the temperature of one gallon of water one degree?
No BTU are required in order to lowerthe temperature of water. All you have to dois place the water in an environment that is cooler than the water is, then stand backand watch the temperatue of the water drop while the BTU flow out of it.
How many btu per gallon of water?
It takes 8.33 BTU to raise the temperature of water 1 degree F.
How many btu does it take to raise the temperature of 1 gallon of water 1 degree if water was already 50 degrees?
U.S.gallon = 8.33 pounds of water. Therefore to raise the temperature by one degree F will require 8.33 BTU. The initial temperature of 50 F is inconsequential.
How many BTU are required to raise the temperature of one gallon of water one degree Fahrenheit in one hour?
This is a pretty straightforward calculation. By definition, a BTU is the amount of energy required to raise one pound of water one degree F. But you have one gallon of water, which weighs approximately* 8.34 pounds. So, you'd need 8.34 BTU to increase one gallon of water one degree F. Note how the amount of time was not important. Whether you heat the water slowly or quickly doesn't matter. You will still require 8.34 BTU to raise the temperature of a gallon of water one degree F. * I say approximately because the weight of water varies slightly with its temperature. Water is at its densest at 4 degrees Celsius (39 degrees F). A gallon of water at temperatures above and below that value will weigh less.
What is the amount of cooling required to low the temperature of a substance through 1 degree Celsius?
To lower the temperature of 1 gram of water by 1 degree Celsius would be to remove 1 calorie.
How many BTUs will it take to lower 1 gallon of water 1 degree?
1 BTU = heat corresponding to change in temperature of 1 pound of water by 1° Fahrenheit.Weight of 1 gallon of water = roughly 8.33 poundsHeat corresponding to change in temperature of 1 gallon of water by 1° Fahrenheit = 8.33 BTU.But it doesn't take that, i.e. you don't have to supply it. You're talking about lowering thetemperature, so you're just allowing the water to cool on its own. As it does, it releases8.33 BTU of heat, which you can then collect and take away to use somewhere else.
How much does a gallon of 50 degree water weigh?
1 gallon of water weighs 8.34 pounds, or 3.786 kilograms
Which has a lower temperature ice water or ice?
Ice water has a lower temperature, but if you have plain water, and the ice water melts, it's likely that you'll have two glasses of water of the same temperature.
Does drinking water boil at a lower temperature than salt water?
Yes, drinking water does boil at a lower temperature than salt water.
Is the temperature of ice water lower than the temperature of dry ice in alcohol?
No. The temperature of dry ice is far lower than that of ice water.
How many BTUs will it take to change 1 gallon of water at 32 degrees to ice at 32 degrees?
You would need to remove approximately 1200 BTUs of heat to convert a gallon of water to ice. There are 8.34 lb in a gallon of water, which converting to lb-moles is 0.463. The latent heat of crystallization for water is -2583.4 BTU/lb-mole. Multiplying the two together and you get -1197 BTUs, which means you need to remove that amount of heat to convert the gallon of water to ice.
