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Q: How many btus are required to change 5 pound of ice at 20 degrees Fahrenheit to steam at 220 degrees Fahrenheit?

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A BTU is defined as the amount of heat required to raise the temperature of one pound of liquid water by one degree Fahrenheit. Melting a pound of ice at 32 °F requires 143 BTU. As is the case with the calorie, several different definitions of the BTU exist, which are based on different water temperatures and therefore vary by up to 0.5%:

British Thermal Unit, the amount of energy required to raise the temperature of one pound of water one degree Fahrenheit

Depends on the temperature of the water. If it is 32 degree water and you want 32 degree ice then you need a -144 BTU loss to change state from liquid to solid. It takes 1 BTU to raise the temperature of 1 pound of water 1 degree (F). If the water is 82 degrees then you would need a -50 BTU loss (+) 144 BTU to change state. TOTAL WEIGHT OF WATER (X) 1 BTU (X) Degrees desired of change. If it is ICE to WATER then it is the TEMP of ICE (X) .5 BTU (X) NUMBER OF DEGREES INCREASED = TOTAL BTU needs. If you change state in the process you have to add 144 BTU for 32 degree ICE to 32 degree WATER and 970 BTU for 212 degree WATER to 212 degree STEAM but only when you change state.

It is 6.17 pounds (approx.). Kilogram (kg) is SI unit of mass and Pound is an Imperial unit. To convert from kg to pound multiply kg unit by 2.20462. To convert from pound to kg multiply pound unit by 0.453592.

A horse & get some change

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180

Customary units

Propane freezes at -40 degrees C (which also happens to be -40 degrees Fahrenheit).

A BTU is defined as the amount of heat required to raise the temperature of one pound of liquid water by one degree Fahrenheit. Melting a pound of ice at 32 °F requires 143 BTU. As is the case with the calorie, several different definitions of the BTU exist, which are based on different water temperatures and therefore vary by up to 0.5%:

Assuming you mean "212 degrees Fahrenheit and at sea level". 15.991 ounces, or almost exactly one pound.

Long enough for a meat thermometer to indicate that it has reached 160 degrees Fahrenheit.

That's going to depend on how much water you're responsible for. Teacup at 60 degrees . . . very few BTU. Swimming pool at 60 degrees . . . many more BTU. It's also going to depend on whether you're talking about Celsius or Fahrenheit degrees. Fahrenheit degrees . . . fewer BTU. Celsius degrees . . . more BTU. (Also, the water will escape as you pass 100.) In general, one BTU is approximately the energy required to raise the temperature of 1 pound of water 1 degree Fahrenheit. You can take it from there, when you reach the job site and determine the exact scope of the work.

200 BTU. I'm assuming your temperatures are in Fahrenheit, since all of your other measurements are in the Imperial system. A BTU is defined as the amount of energy required to raise the temperature of 1 pound water by 1 degree F, so the temperature is raised by 20 degrees, and 10 pounds of water: 20 x 10 = 200

You should cook an unstuffed turkey for 15 minutes per pound at 325 degrees Fahrenheit.

The British Thermal Unit (BTU): The Amount of work required to raise one pound of water 1 degree Fahrenheit.

British Thermal Unit, the amount of energy required to raise the temperature of one pound of water one degree Fahrenheit

To cook a 4 pound chicken in a rotisserie at a temperature of 350 degrees Fahrenheit can take nearly two hours. However, you should use a meat thermometer to check that the internal temperature of the chicken is about 165 degrees Fahrenheit. The length of time to cook rotisserie chicken is about 20 to 30 minute per pound of meat.