# How many BTUs are needed to heat one gallon of water to 200 degrees?

Assume the water is initially at 40 F and 14.7 psia.

m = ( 1.0 gal ) ( 1.0 ft^3 /7.4805 gal ) ( 62.43 lbm / ft^3 ) =
8.346 lbm

Q = Delta U = ( m ) ( Cv ) ( T2 - T1 )

Q = ( 8.346 lbm ) ( 1.00 Btu / lbm - Fdeg ) ( 200 F - 40 F ) = 1335
Btu <----------------

I depends of the starting temperature of the water.

A BTU is the amount of energy required to raise 1 pound of water 1 degree Fahrenheit ... water weighs about 8.34#/gal ... so 8.34 BTU's are required to raise 1 gallon of water 1 degree F. If your starting temperature of the water was 40 degrees F ... there would be 160 degree rise to 200 degrees or ...

1,334 BTU's are required to raise 1 gallon of water from 40 degrees to 200 degrees Fahrenheit

.

### 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.

### How many BTU needed to operate 30000 gallon pool at 80 degrees?

It takes 8.34 BTU to heat 1 gallon of water 1 degree F. Take 8.34 BTU times number of gallons to determine energy needed to raise pool 1 degree F. Then multiply by how many degrees you need to raise the temperate of the current pool temperature to the desired temperature. Example: 8.34 * 30,000 gal = 250,200 BTU need to raise temperature 1 degree F Next multiple by the number of degrees to warm…

### How many BTU's does it take to evaporate one pound of water?

BTUs to Evaporate One Pound of Water Quick 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…

### What is the Btu rating of LP gas?

A British Thermal Unit (BTU) is the amount of heat energy needed to raise the temperature of one pound of water by one degree F. This is the standard measurement used to state the amount of energy that a fuel has as well as the amount of output of any heat generating device. You might be able to imagine it this way. Take one gallon (8 pounds) of water and put it on your stove…

### How many BTU are needed to evaporate one liter of water?

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…

### How many btu are in a gallon of propane?

Type your answer here... there are around 91,600 BTUs in a gallon of propane. The standard BBQ sized bottle of propane contains 11 pounds of propane. Propane weighs about 4.2 pounds per gallon, so that 11 pounds of propane is about 2.5 gallons in its liquid state. That means there is 91,600 BTUs/Gal times 2.5 gallons so a BBQ sized tank of propane contains about 2.3 million BTUs. If your BBQ has a 50,000 BTU…

### How many mcf of natural gas equals the btu of 1 barrel of crude oil?

A fourty two (42) gallon barrel of oil generates approximately 5,600,000 btus. A cubit foor of nat gas generates 1,200 btus ,there for you would need 4,666.67 cubic feet of gas or 4.6 mcf. Today, an mcf of nat gas costs $2.6 an mcf, a barrel of oil $106. The btu per dollar breakdown looks like this. 5,600,000 btus = 1 barrel of crude oil = $106 5.6m btu / $106 = 52,830 btus per…

### How many btus are required to change 5 pounds of ice at 32 degrees to steam at 82 degrees?

The question cannot be answered because: the temperature scale being used has not been specified, There is no normal temperature scale in which you can have ice at 32 degrees and steam at 82 degrees without large changes in pressure. If changes in pressure are permitted then there is no simple formula to calculate the amount of heat (btus) required.

### 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 1Â° Fahrenheit. Weight of 1 gallon of water = roughly 8.33 pounds Heat corresponding to change in temperature of 1 gallon of water by 1Â° Fahrenheit = 8.33 BTU. But it doesn't take that, i.e. you don't have to supply it. You're talking about lowering the temperature, so you're just allowing the water to cool on its own. As it…

### What changes water from a solid to a liquid to a gas?

Heat. Ice, solid water, at 32 degrees F needs 144 btus of heat per pound to liquify completely. Water at 212F needs 970.3 btus per pound to evaporate completely into dry steam. Water vapor (visible steam), in air, {say from a pot} is actually about 3 to 10% dry steam and only required about 28 to 100 btus per pound to vaporize and become airborne, This is an odd characteristic of water, that varying proportions…

### How many BTUs does it take to heat a 1250 gallon pool of water from 50 degrees to 82 degrees?

{Sigh} I hate English units. A BTU is defined as the amount of heat required to raise the temperature of 1 lb of water by 1 deg F. The basic relation is Q = mcdT Heat = mass * heat capacity * change in temperature. A gallon of water weighs about 8 lb, so you're talking about 500,000 gal * 8 lb/gal = 4 million pounds. The constant c for water, by the definition given…

### What is the tonnage of a 108000 btu ac?

A ton of refrigeration is defined as the amount of heat removal required to change one ton of water (2000 pounds) at 32 degrees F to one ton of ice at 32 degrees F in one day which is 288000 BTUs. Today it is assumed that BTU ratings are by the hour, so one ton of refrigeration is the removal of 1200 BTU/hr. So if your air conditioning unit is removing 108000 BTUs/hr it is…

### How many BTU are generated to get water to 212 degrees?

This question is a little confusing in that BTUs are not generated in raising the temperature of anything; the input of heat is required. And if the questioner meant required instead of generated, then the question is still unanswerable as the amount of water must be specified, AND the starting temperature must be specified.

### How many btu's in office water-cooler?

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…

### How many btus are required to change one pound of ice at 20 degrees Fahrenheit to steam at 220 degrees Fahrenheit?

1)This is a 5 part question. The first is realizing that 20F to 32F uses .5BTU per pound per degree. That means it takes 32-20=12*.5=6BTUs to get the ice to 32F. 2)Then you need to know the Latent Heat of Fusion for Ice which is 144BTUs (given). Lets assumes the ice changes from ice to water instantaneously at 32F. 3)Next we calculate the BTUs from 32F to 212F. Which is 1BTU per pound per degree…

### How many btus per gallon of kerosene?

1 gallon for #1 Kerosene produces 135,000 BTUs. #1 Kerosene is closely related to #1 Diesel and JP8 (Jet Fuel) - they differ chiefly in additives. Likewise, #2 Kerosene, Diesel #2, and Furnace Oil are similar to one another. #2 oils have higher sulfur content, which leads to more eye and lung irritation from the emissions. However, they are also comprised of longer hydrocarbon chains, and therefore weigh more per gallon and also have somewhat…

### How many BTU's to heat a swimming pool?

It takes one Btu to raise one pound of water one degree based on the density of the water. Water weighs approximately 8.345 pounds per gallon around pool temperatures. So, take the gallons of water in the pool, multiply that by 8.345 to get the weight of the water and multiply that for every degree you wish to raise the pool temperature. If you are sizing a fossil fuel heater to the task, you need…

### How many btu's are need to cool apple juice from 110 f to 34 f?

Let's assume it's a pound of apple juice (around a pint) and that we can, for all practical purposes, treat apple juice as if it were water. In that case, raising the temperature from 34 degrees to 110 degrees would require 76 BTUs, so to go in the reverse direction we would need to remove 76 BTUs of energy from the material. How much power it would require to do this would depend upon the…