What exactly is latent heat of steam?

Question

it for my hw....any 1 who answers in 1/2 hr 2 day will get best answer

Answer 1

latent heat of steam, or more commonly called the heat of vaporization of water, is the amount of heat (energy) required to boil a kg of water at 100C, converting it to steam at 100C, or conversely, the amount of heat (energy) 1 kg of steam at 100C gives off as it condenses back to water at 100C. The two numbers are the same.

heat of vaporization of water is 2.256 MJ/kg

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Answer 2

the latent heat of steam is not specified because you can increase its temperature to any desired value without changing its state

Answer 3

assuming you are not referring to 'specific' latent heat...

latent heat of steam is the energy required to raise the temperature of steam by 1 Kelvin, given in J/KgK

it will vary due to nature of gases; dependant on the temperature, pressure and volume.

Answer 4

The SPECIFIC latent heat is the amount of energy ( in joules) needed to change 1 kilogram  of boiling water ( at 100C) into steam without a change in temperature - so units are J/kg.

Latent heat is the energy required to change some boiling water into steam without reference to the mass.

Answer 5

a given state of matter is not characterized by a latent heat. only transitions from one state to an other one is.