###### Asked in Math and Arithmetic, Physics, Algebra

Math and Arithmetic

Physics

Algebra

# How many BTUs will it take to change 1 gallon of water at 32 degrees to ice at 32 degrees?

141516

## Answer

###### Wiki User

###### 01/24/2007

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.

## Related Questions

###### Asked in Math and Arithmetic, Units of Measure, Physics

### How many BTUs does it take to heat 390 gallon tank of water from 60 degrees to 248 degrees?

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.
...

Read More

###### Asked in Hydrocarbons, Liquified Petroleum Gas (LPG)

### How many BTUs are in one gallon of propane?

91,333 BTUs in 1 gallon of
propane

Read More

###### Asked in Math and Arithmetic, Temperature

### 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.

Read More

###### Asked in Math and Arithmetic, Snow and Ice, Temperature

### How many BTUs are required to change five pounds of ice at 20 degrees F to steam at 220 degress F?

6519.2 btus are required.

Read More

###### Asked in Science, Chemistry, Rain and Flooding

### How much heat is it to heat 500g of water from 5 degrees to 75 degrees?

BTU: British Thermal Unit, the amount of energy it takes to
raise one pound of water one degree Fahrenheit. In this case 500g(x
aproximatly 8 pounds per gallon) or 4000 pounds x 70(the difference
from 5 degrees to 75 degrees), which equals 280,000 BTUS
...

Read More

###### Asked in Chemistry, Fossil Fuels

### How many BTUs are there in a gallon of Kerosene?

jet fuel kerosene is about 126,000 BTU per US gallon

Read More

###### Asked in Fossil Fuels

### How many BTUs per gallon of gasoline?

For regular gasoline, 125,000 BTU per US gallon

Read More

###### Asked in Units of Measure, Bodies of Water, Thermodynamics and Statistical Mechanics

### How many BTUs can a gallon of water store?

You can assume two temperatures, and calculate the amount of
energy required to heat the water from one temperature to the
other. Then convert that to BTU.
...

Read More

###### Asked in Fossil Fuels

### How many BTU's per gallon of kerosine?

One gallon of kerosene will produce
134,000 BTUs of energy when burned.

Read More

###### Asked in Math and Arithmetic

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

100 BTU if it's Fahrenheit

Read More

###### Asked in Fuel Economy and Mileage, Math and Arithmetic, Algebra

### What is the Gallon Per Hour use of a kerosene heater?

Depends on the BTUs of the heater.

Read More

###### Asked in Thermodynamics and Statistical Mechanics

### How many BTUs are required to heat one gallon of water one degree?

8.33 btu if the gallon is US measure, 10 btu if the gallon is
british measure.
A btu is the amount of heat required to raise 1 pound of water 1
degree fahrenheit at atmospheric pressure (14.696 psia).
...

Read More

###### Asked in Physics

### How many btus does it take to heat up one gallon of water?

That depends on what the starting temperature of the water
is,
and what temperature you want it to reach.
If you expect to get a number, you must first give the
necessary numbers.
...

Read More

###### Asked in Math and Arithmetic

### 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 does, it releases
8.33 BTU of heat, which you...

Read More

###### Asked in Heating Ventilating and Air Conditioning, Math and Arithmetic, Mechanical Engineering, Temperature

### 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
very few compared to the BTUs required...

Read More

###### Asked in Temperature

### 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.
...

Read More

###### Asked in Biology, Units of Measure

### How many BTUs are in one gallon of gasoline?

Depending on the fuel grade and blend, about 114,000 -
125,000.

Read More

###### Asked in Wood-Burning Stoves

### What is 650 degrees in BTUs?

One measure does not directly translate to another. A BTU is the
amount of heat that it takes to raise the temp of one pound of
water by one degree F. A burning match, and a burning fireplace may
both be at 650 degrees, but the fireplace gives off more heat (more
BTUs)
...

Read More

###### Asked in Hydrocarbons

### How many BTU are in a pound of propane?

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/
...

Read More

###### Asked in Heating Ventilating and Air Conditioning, Math and Arithmetic, Chemistry, Thermodynamics and Statistical Mechanics

### 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 <----------------
...

Read More

###### Asked in Math and Arithmetic, Algebra

### How many Btu are required to raise the temperature of 15lb of water from 100F to 120F?

1 btu raises 1 lb water 1 degree F from 62 to 63 degrees.
generally 1 btu/lb/degree F x 20 degrees F difference x 15 lbs =
300 btus
specifically the heat of the liquid at 100F is 67.97 btus and at
120F = 87.92 btu
87.92 - 67.97 = 19.95 btu
19.95 x 15 lbs. = 299.25 btus to be more accurate
...

Read More

###### Asked in Grills

### How long on average does a 20 lb propane gas grill tank last?

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 (366000
BTUs)
Your grill will last 366000 BTUs/ Grill BTU output hrs
...

Read More

###### Asked in Units of Measure, Oil and Petroleum

### How Many BTU's per barrel of crude oil?

Approximately 5,800,000 BTUs per 42-gallon barrel.

Read More