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Latent heat of vaporization "Water" thermodynamic
-first of all I want to know if the "latent heat of vaporiasation " of water is related to the initial pressure of water ?
-If LHV of water is variable with the variation of pressure , how can we calculate the heat needed to vaporise a certain mass of water inside a container , cause as we know while heating the container and water start to evaporate the pressure inside the container will increase gradually , so the heat needed to complete the vaporisation must be increased cause the LHV has changed with the change of pressure inside the container , please help
-first of all I want to know if the "latent heat of vaporiasation " of water is related to the initial pressure of water ?
-If LHV of water is variable with the variation of pressure , how can we calculate the heat needed to vaporise a certain mass of water inside a container , cause as we know while heating the container and water start to evaporate the pressure inside the container will increase gradually , so the heat needed to complete the vaporisation must be increased cause the LHV has changed with the change of pressure inside the container , please help