What is the heat capacity of water vapor?

What is the heat capacity of water vapor?

1.996 kJ/kgK
Specific heat water vapor: 1.996 kJ/kgK =0.4767 Btu(IT)/(lbm °F) or kcal/(kg K)

What is the specific heat of water in BTU?

the temperature will drop once again as heat is extracted at the rate of one degree per Btu per pound. The heat given off in the change of state from liquid to solid is called the “latent heat of fusion”. For water, this is 144 Btu per pound.

How many Btus does it take to vaporize water?

You have all heard of the BTU of heat energy (British Thermal Unit), it takes one BTU to raise one pound of water one degree Fahrenheit. So if the water in the pan on the stove is put in at 32°F, it will then require 180 BTU’s to bring the water to boiling temperature, or 212°F.

What is the specific heat of Vapour?

Explanation: The specific heat capacity, or the amount of heat needed to raise the temperature of a specific substance in a specific form one degree Celsius, for water is 4.187 kJ/kgK, for ice 2.108 kJ/kgK, and for water vapor (steam) 1.996 kJ/kgK.

How many BTU does it take to convert water to steam?

This change of state requires a large amount of heat, far more heat than that needed to raise the temperature of the water from 70°F to 212°F. An additional 970 BTU’s is needed to change a pound of water into a pound of steam at atmospheric pressure!

How many BTU does it take to steam?

970 BTU
1 pound of steam is equal to 970 BTU (or an easy to remember rule of thumb is 1 pound of steam is equal to 1000 BTU. 1 pound of water is equal to a 16 oz tall boy (by volume)…. when you heat that tall boy hot enough to make steam it expands almost 1700 times its original volume.

What is the molar heat of vaporization of water?

40.65 kJ/mol
Water has a heat of vaporization value of 40.65 kJ/mol. A considerable amount of heat energy (586 calories) is required to accomplish this change in water. This process occurs on the surface of water.

What is the formula to calculate the heat capacity of water?

C p is the heat capacity of water = 1 BTU/lb ºF (given) ΔT = temperature difference = 120 ºF – 55 ºF Heat energy required to heat 700 gal can be calculated as follows: Heat Required = 5810 lbs x 1 BTU/lb ºF x (120 ºF – 55 ºF)

What is the specific heat of water vapor at different temperatures?

Specific heat of Water Vapor – H2O – at temperatures ranging 175 – 6000 K. Specific heat (or heat capacity) (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree.

How much energy is required to heat 1 gallon of water?

Where C p is the heat capacity of water (1 BTU/lb/F) and m is the mass of the water (Assume 1 gal has 8.3 lb of water and the 3,412 BTU = 1 kWh) In a 10 year period, the energy required is 166,622,500 BTU which is equal to 48,834 kWh . In a 10 year period, the energy required is 136,327,500 BTU which is equal to 39,995 kWh .

What is specific heat capacity (C)?

Specific heat capacity (C) is the amount of heat required to change the temperature of a mass unit of a substance by one degree.