U.S.gallon = 8.33 pounds of water.
Therefore to raise the temperature by one degree F will require 8.33 BTU.
The initial temperature of 50 F is inconsequential.
heat will flow from the iron to the water until both are the same temperature
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.
answer: 7680 btu 1 gallon= 8 lb 130F-50F=80F 12G*8LB*80F=7680 BTU
No BTU are required in order to lowerthe temperature of water. All you have to dois place the water in an environment that is cooler than the water is, then stand backand watch the temperatue of the water drop while the BTU flow out of it.
1 US gallon weighs approx 0.0157 lbs at normal temperature and pressure.
Depends on the temperature of the ice.
This is a pretty straightforward calculation. By definition, a BTU is the amount of energy required to raise one pound of water one degree F. But you have one gallon of water, which weighs approximately* 8.34 pounds. So, you'd need 8.34 BTU to increase one gallon of water one degree F. Note how the amount of time was not important. Whether you heat the water slowly or quickly doesn't matter. You will still require 8.34 BTU to raise the temperature of a gallon of water one degree F. * I say approximately because the weight of water varies slightly with its temperature. Water is at its densest at 4 degrees Celsius (39 degrees F). A gallon of water at temperatures above and below that value will weigh less.
heat will flow from the iron to the water until both are the same temperature
For most turtles, the water temperature in a 20 gallon tank should be between 75-80°F (24-27°C). Basking spots should be around 85-90°F (29-32°C) to allow the turtle to regulate its body temperature. It's important to provide a temperature gradient in the tank so the turtle can move between warm and cooler areas as needed.
The weight of a gallon of water at 229 degrees Fahrenheit would be approximately 8.33 pounds. This is because water's density changes with temperature, and at 229 degrees Fahrenheit, water is less dense compared to when it is at room temperature.
The weight of a gallon of diisobutylene would depend on its temperature. At room temperature (around 25 degrees Celsius), the density of diisobutylene is approximately 6.4 pounds per gallon.
The amount of propane needed to heat a 50 gallon water heater from 75 degrees to 105 degrees would depend on factors such as the efficiency of the water heater, the starting temperature of the water, and the ambient temperature. It is difficult to provide an exact amount without this information.
If the temperature is around 20 degrees (Celcius) probably not. But for a five GALLON fish tank, probably.
The proper storage temperature for one gallon of milk is in the refrigerator with a temperature below 40 degrees Fahrenheit. Do not store the milk on the refrigerator door. Keep it on a shelf where it will stay cooler.
Aviation gasoline (avgas) has an average weight of slightly over 6 pounds per gallon (6.02) at a Standard Day temperature of 15 degrees C or 59 degrees F.
It takes 8.33 BTU to raise the temperature of water 1 degree F.
A gallon of gasoline weighs approximately 6.3 pounds (2.8 kilograms) at a temperature of 60 degrees Fahrenheit (15.6 degrees Celsius).