Learn all about the heat of vaporization. Understand its formula and the respective units used. See some examples of calculations for the heat of...
Latent Heat of Vaporization: An Example Lesson Summary Frequently Asked Questions What causes latent heat? Latent heat is the amount of heat absorbed or released divided by the mass of a substance that is changing phase. Latent heat is caused by overcoming the intermolecular forces that hold the...
A consequence of hydrogen bonding is that hydrogen bonds tend to arrange in a tetrahedron around each water molecule, leading to the well-known crystal structure of snowflakes. In liquid water, the distance between adjacent molecules is larger and the energy of the molecules is high enough that ...
Cooling via perspiration is affected by latent and sensible heat. When there is a breeze, evaporative cooling is highly effective. Heat is dissipated away from the body due to the high latent heat of vaporization of water. However, it's much harder to cool down in a sunny location than in...
of the road is lower than 0 degrees Celsius -- the freezing point of water. This happens because solvent molecules must order themselves into a lattice when freezing, and dissolved particles interfere with the process. In addition, heat is released when the salt dissolves, which melts some of...
Complete vaporization of particles in a plasma ensures accurate analysis with respect to standards that may inevitably differ from test samples with respect to the composition of crystals that contain the elements to be determined. High-current (up to 40 A) arc discharges of alternating current and...
Enthalpy can be defined as the amount of heat evolved or absorbed in any chemical reaction when the complete number of moles of reactants has reacted. It is also called the heat of reaction or enthalpy change of a chemical reaction. The enthalpy change is a common term used for all the...
Distillation is an essential physical process of separation, but not a chemical reaction that is variedly used in chemistry, industry, and food science.
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Learn the evaporation meaning and how to describe evaporation in the water cycle. See the process of evaporation and review some examples of...