It is approximately 539.4 calories per gram.
The heat fusion of water is 80 calories per gram of water.
The latent heat of vaporization for water is 539.6 cal/gram.
Basically you use the definition. Boil a certain amount of water until all of it evaporates, and check how much heat energy is used in the process.
540 calories/grams
Latent heat of vaporization.
The heat of vaporization. :D
Calculating the amount of water reacted is simple with a scale. As long as the mass of the water before evaporation is measured, one can find the amount of water evaporated simply by measuring the mass of the water after evaporation and taking the difference of the mass. To convert this to volume, simply divide the mass by the density of water (typically 1g/cm3).
The latent heat of vaporization of a liquid is the amount of heat needed to change that liquid when at it's boiling point to a gas. Hydrogen bonds are present between water molecules. These are strong intermolecular forces between the slightly negative oxygen atom in one water molecule and the slightly positive hydrogen atom in another water molecule. These bonds must be broken in order for the water to change from a liquid to a gas and requires a great amount of energy thus explaining water's high latent heat of vaporization.
Heat of vaporization or enthalpy of vaporization. It is the additional energy, per unit mass, required after vaporization temperature (boiling point) is reached, to accomplish the change in state, from liquid to gas.
2260 kJ/kg
yes
Heat of Vaporization id the amount of heat needed to transform a liquid into a gas while not raising its temperature.
Vaporization is the change of liquid water to water vapor. Vaporization requires addition of the latent heat of vaporization to liquid water. The latent heat of vaporization supplies the liquid water molecules with enough energy to become vapor molecules. The latent heat of vaporization at 1.0 atmosphere pressure is about 1000 Btu per lbm ( 2260 kJ per kg ).
Perspiration coats the outside of the skin with moisture (water). The water evaporates. Evaporation requires heat to be absorbed by the water (the latent heat of vaporization). Heat is removed from the body surface to provide the water with the latent heat of vaporization.
The water heat of vaporization is 40,65 kJ/mol.
The latent heat of evaporation
The phase change of water into gas is vaporization. Vaporization in this example involves the liquid water absorbing heat (endothermically).
High heat of vaporization. It requires a great deal of energy to break the H bonds in water.
Water has a high heat of vaporization
This value is depending on the temperature; read the link below for details.
vaporization of water happens when it turns from a liqued form into a gas due to heat which creates conensation :P