As mathman has asked, what condition do you have where there is no vapour present and only liquid.What is the heat energy removed from a liquid when vapor is no longer present.
256bits said:As mathman has asked, what condition do you have where there is no vapour present and only liquid.
For example, water in a pipe has no vapor present, and heat would be exchanged through the pipe walls via conduction, and perhaps convection, to the surroundings.
Heat energy removed refers to the amount of heat that is taken away from a substance during a physical change, such as sublimation or fusion.
Latent heat of sublimation/fusion is the heat energy required to change a substance from a solid to a gas (sublimation) or from a solid to a liquid (fusion) at a constant temperature and pressure.
Specific heat is the amount of heat required to raise the temperature of a substance by a certain amount, while latent heat of sublimation/fusion is the amount of heat required to change the state of a substance without changing its temperature.
Latent heat of sublimation/fusion is important because it determines the amount of energy needed to cause a physical change in a substance. This energy is necessary for processes such as melting, evaporating, and condensing.
Latent heat of sublimation/fusion can be measured experimentally using a calorimeter, which measures the amount of heat released or absorbed during a physical change. It can also be calculated using the equation Q = mL, where Q is the heat energy, m is the mass of the substance, and L is the latent heat of sublimation/fusion.