Table of Contents
- 1 How many BTU does it take to change ice to water?
- 2 How much energy does it take to raise the temperature of a kilogram of water by 1 C?
- 3 How many BTU does it take to change 1 degree?
- 4 How much energy does it take to heat 1 gram of water?
- 5 Why can you assume the initial temperature of the ice is 0 C?
- 6 How many BTUs is a degree Fahrenheit?
- 7 Does a kilogram of water have more internal energy than ice?
- 8 How much quantity of heat is required to convert ice into vapour?
How many BTU does it take to change ice to water?
144 Btu
When ice changes back into liquid water, an equivalent amount of heat is absorbed 144 Btu per pound. That’s why it feels so good to put an ice cube on your skin when you are hot. The ice takes away 144 Btu per pound of water it melts, or changes state.
How much energy does it take to raise the temperature of a kilogram of water by 1 C?
The specific heat capacity of water is 4,200 joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.
How many BTU does it take to change 1 degree?
This number includes the specific heat (Cp) of air (0.24 BTU per pound per degree Fahrenheit). It takes 0.24 BTU of heat to change the temperature of one pound of air by one degree F. The 1.08 factor also contains the specific density of air (0.075 pounds per cubic foot).
How many BTU does it take to raise 1 gallon of water 1 degree?
8.33 BTU
One BTU is the amount of heat energy required to raise one pound of water by 1ºF. Water weighs 8.33 pounds per gallon so we can calculate that one gallon of water requires 8.33 BTU to raise the temperature 1ºF.
How much energy does it take to raise 1 degree of water?
Quantitative experiments show that 4.18 Joules of heat energy are required to raise the temperature of 1g of water by 1°C.
How much energy does it take to heat 1 gram of water?
Thus the “15° calorie” (also called the gram-calorie, or small calorie) was defined as the amount of heat that will raise the temperature of 1 gram of water from 14.5° to 15.5° C—equal to 4.1855 joules.
Why can you assume the initial temperature of the ice is 0 C?
We assume that the ice has an initial temperature of 0o C because we let the ice sit at room temperature until it had started to melt. In the figure below the ice has been added to the warm water and melted.
How many BTUs is a degree Fahrenheit?
This number includes the specific heat (Cp) of air (0.24 BTU per pound per degree Fahrenheit). It takes 0.24 BTU of heat to change the temperature of one pound of air by one degree F.
How many BTU does it take to raise water 18 degrees?
How many BTUs does it take to raise 45 pounds of water 18 degrees? Using the same logic, you can heat 45 pounds of water by 2 degrees with 245=90 BTU. And you can heat it by 18 degrees with 4518 BTU. What amount of heat energy is needed to raise the temperature of 1 pound of water by 1 F?
How many BTUs does it take to heat 45 pounds of water?
Using the same logic, you can heat 45 pounds of water by 2 degrees with 245=90 BTU. And you can heat it by 18 degrees with 4518 BTU. What amount of heat energy is needed to raise the temperature of 1 pound of water by 1 F?
Does a kilogram of water have more internal energy than ice?
As an answer to your question, a kilogram of water at 0°C has more internal energy than a kilogram of ice at the same, since it has gained the extra energy required for transition from ice to water (also refered to as Latent Heat) which is Heat is not something which is contained by a system.
How much quantity of heat is required to convert ice into vapour?
If you ask how much quantity of heat is required to convert 1 kg of ice into vapour then you have to add latent heat of fusion that is 336 kj/kg and latent heat of vaporization 2257 kj/kg (these two process occur at constant temperature so need to add rise in tempeature) Hope you got this!!!!!!!