The process of vaporization, where water changes from liquid to gas, requires 2260 Joules of energy per gram to occur.
Evaporation.
Photosynthesis requires energy input in the form of sunlight to convert carbon dioxide and water into glucose and oxygen.
Energy is absorbed when water is vaporized. This is because the process of vaporization requires breaking the hydrogen bonds between water molecules, which requires energy input to overcome the intermolecular forces holding the liquid water together.
Melting requires energy input or absorption because liquid water has more energy than solid water.
The process that requires water to gain 2260 joules of energy per gram is known as specific heat capacity. Water has a specific heat capacity of 4.18 J/gĀ°C, which means it takes 4.18 joules of energy to raise the temperature of 1 gram of water by 1 degree Celsius.
There aren't any calories in pure water. Water doesn't give you energy, so therefore it doesn't have any calories.
Evaporation of water from the skin is a cooling process because it requires heat energy from the skin to convert liquid water into water vapor. This heat energy is drawn from the skin's surface, resulting in a cooling sensation.
Water gains the most heat energy during the process of vaporization, when it changes from liquid to gas. This requires a large amount of energy to overcome the intermolecular forces holding the water molecules together.
An example of an endothermic process is evaporating. Evaporation requires an input of energy to convert liquid water into water vapor, so it is an endothermic process.
Milk contains calories which give you energy. Water doesn't contain calories.
evaporation requires energy from the sun