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Q: How many Btus must be removed from 1lb of water at 200F for it end up as ice at 30F?
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How many btus must be removed from one pound of water at 200 for it to end up as ice at 30?

144


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 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


How many BTUs must be removed from one pound of water at 200 F for it to end up as ice at 30 F?

actually its 313.


How many btus must be removed from one pound of water at 200 degrees f for it to end up as ice at 30 degrees f?

313 Btu


If one pound of water is at a temperature of 32 degrees Fahrenheit, how many BTU’s must be removed in order to create a block of ice at 17 degrees?

LATENT HEAT OF FUSION When one pound of ice melts, it absorbs 144 BTUs at a constant temperature of 32°F. If one pound of water is to be frozen into ice, 144 BTUs must be removed from the water at a constant temperature of 32°F.


How many btus does it take to raise of 5 pounds of water to 5 degrees Fahrenheit?

25


How many Btus will it take to raise 10 pounds of water from -5 to 220 Degrees?

2250


How many BTUs does it take to raise the temperature of water from 32 degrees to 300 degrees?

That will completely depend on how much water there is.


How many square feet does 4800 btus heat?

4800 BTUs will 150 square feet.


How many Btus are required to change one pound of water at 40F to 200F?

160 btu's. It takes 1 btu (British Thermal Unit) to change the temperature of 1lb of water 1°. This is referred to as sensible heat. This 1 to 1 ratio does not hold true when changing the state of that water to ice or to steam. Changing the state 1lb of water at 212° to 1lb of steam at 212° you must add 970 btu's and to change 1lb of water at 32° into 1lb of ice at 32° you must add 144 btu's. This is referred to as latent heat.


How many btus are needed to heat one lb of water one hundred degrees?

100 BTU if it's Fahrenheit


How can I determine how many BTUs I need for an air conditioner?

A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.