Top Answer

BTUs to Evaporate One Pound of WaterQuick Answer: Somewhere around 1000BTU/lb

Long answer: It depends on the temperature of the water you start with. Before you can evaporate the water, you must heat it to it's boiling point. The warmer the water you start with the fewer BTUs will be needed to heat the water to its boiling point. Keep in mind the BTUs require to raise the water to its boiling point are very few compared to the BTUs required to change the water from a liquid to a gas.

One pound of steam contains 1150 BTUs. This is the energy you need to put into the water for it to evaporate if you start with water at 32F. If you start with water at 100F the water already has 70 BTU/lb so the BTUs required to evaporate the water when you start at 100F is 1150-70 = 1080 BTU and so on.

You can get all this information in a steam table which can be found easily by searching the web.

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It takes about a thousand BTUs to turn a pound of water into a pound of steam, and that's how many BTUs must be removed to condense a pound of steam back into a pound of water.

970

A 100 pound propane tank has a capacity of 2,160,509 BTUs

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Quick Answer: About 2,139 BTU/litre at the normal boiling point. Long answer: It depends on the temperature and pressure of the water you start with. Before you can evaporate the water, you must heat it to it's boiling point. The warmer the water you start with the fewer BTUs will be needed to heat the water to its boiling point. Keep in mind the BTUs require to raise the water to its boiling point are very few compared to the BTUs required to change the water from a liquid to a gas. One litre of water weighs about 2.205 lb, and since both BTUs and lb are from the imperial set of units, we can make the rest of this explanation in terms of pounds and then just multiply by 2.205 when we get done. One pound of steam contains 1150 BTU/lb relative to liquid water at 32 °F. This is the energy you need to put into the water for it to evaporate if you start with water at 32 °F. If you start with water at 100 °F the water already has 70 BTU/lb so the BTUs required to evaporate the water when you start at 100 °F is 1150-70 = 1080 BTU/lb and so on. You can get all this information in a steam table which can be found easily by searching the web.

One BTU is the energy required to raise one pound of water by one degrees. Therefore, your answer would be one half.

There are no BTUs in an office water-cooler. But you can calculate how many BTUs are removed by the cooler. One BTU or British Thermal Unit is the amount of heat energy required to raise the temperature of one pound of water one degree Fahrenheit. There for when you remove one BTU you are lowering one pound of water one degree Fahrenheit. So if you know how many pounds of water you have and the temperature of the water you start with and the temperature of the water comming out of the cooler you can calculate how many BTUs the cooling unit of the water cooler has removed. BTU=Temp1 - Temp 2 X LB water

The specific heat of water is 1 BTU per pound per degree Fahrenheit. There are 8.3378 lbs/gallon at 60 degrees, which equals 3251.742 pounds of water. The number of BTUs to raise it 188 degrees is then 611,327.496 BTUs.

One million.

212 - 80 = 132 degrees temperature increase x 1 pound water = 132 BTU

actually its 313.

313 Btu

Assuming the water is already at freezing temperature, and we need only convert its state from a liquid to a solid:the latent heat of fusion of water is 334 Kj per Kg334 Kj per Kg is 143 BTU per poundTherefore, it takes 143 BTUs to freeze one pound of water.

Many liquids evaporate, one example is water

1 gallon of Propane ~= 4.23 lbs ~= 91500 Btus 1 lbs of Propane ~=22000 Btus 20 lb tank of propane holds approx 4 gallons of propane (approx 366000 BTUs) Hope this helps/

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That will completely depend on how much water there is.

This depends on many factors.

1304 Btu/h

1320 btu`s

91,333 BTUs in 1 gallon of propane

This depends on many factors.

This depends on many factors.

This depends on many factors.

The answer is... YES! It does! I have done this science project many many times and have proved that water does evaporate faster with salt.