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 F. 212-32=180 so it take 180BTUS. 4)Next we have to use the Latent Heat of Vaporization of water which will say instantaneously converts water to vapor. This takes 970BTUS (given). 5)Then we calculate the BTUS from 212F to 220F. Which is .5BTUs per pound per degree F which is 220-212=8*.5=4BTUs...... Finally add up all the BTUs and you get 6+144+180+970+4=1304BTUs.
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.
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
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.
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.