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How much energy is needed to evaporate 1g of water at room temperature?
Wiki User
∙ 8y ago
1 Calorie per degree C. If room temp is 72 degrees C then 28 calories to get to boiling then the it takes 540 calories to water from liquid to gas, called the heat of vaporization. So add 540 to 28 and you get 568 calories.
That's the energy to convert 1g of water at room temperature to 1g of steam at 100deg C. And if your room temperature is really 72 deg C you are in trouble - more probably degrees Fahrenheit.
Many times, the units of energy are given in joules (J) and 1 calorie is equivalent to 4.184 joules. The specific heat of water is 4.184 J/g/deg, so to raise the temp of 1 g water from 25ºC to 100ºC will take (4.184 J/g/deg)(75 deg)(1g) = 314 J. Then to convert that 1 g of 100ºC water into steam, you need to use the ∆Hvap which is 2260 J/g. Thus, 2260 J/g x 1 g = 2260 J to evaporate the water. Total energy required is 314 J + 2260 J = 2574 J.
Wiki User
∙ 8y ago
Wiki User
∙ 15y agoThe latent heat of vaporisation for water is 2260 Joules per gram
Wiki User
∙ 14y agoHeat of Vaporization for water = 540 Cal/g
Wiki User
∙ 10y ago580 calories
Wiki User
∙ 6y agoThe needed heat is 40,65 kJ/mol.
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In what environment will water evaporate first in a cold or warm temperature?
when the temprature is hot the substance will evaporate( the person that wrote this before is a dummy)
Name a characteristic property of water?
Water requires a lot of energy to raise its structure and to evaporate.
Will sugar be left as residue if a sugar solution with water is evaporated?
Heat It Up And Measure The Temperature. Are you serious? How does it evaporate not how you know it evaporates. The soda molecules have more KE or Kinetic energy, energy of motion. The molecules tend to break apart and fly apart.
What temperature is the water?
Water temperature tells you how cold or hot the water is. If the water is hot, the heat indicates the kinetic energy of the water.
How much energy will be needed to vaporize 175g of water?
The amount of energy needed to vaporize 175 g of water depends on the temperature of the water. However, we shall assume it is 100 degrees C. We multiply 175 by 539 and get 94,325 calories. (Notice the small c). We could express it as 94 Calories if we were talking about the stuff on your dining room table.
What provides the energy that water needs to evaporate?
These energy sources are the movement of water molecules and the temperature.
What temperature is needed to separate magnesium chloride from water?
The water will slowly evaporate on its own at room temperature, but boiling temperature will do it much faster!
What might happen if enough energy is absorbed by liquid water?
The temperature will rise, and the water will evaporate.
How do you increase energy in drinking water?
The surface molecules of the water will evaporate. As the kinetic energy increases the water molecules become more free, which causes the water to evaporate.
How much energy is required to evaporate 21.6 tons of water?
The needed energy at 100 oC is 48751 MJ.
What needs to be added to liquid water at the Earth's surface in order to evaporate it into gaseous water?
Liquid water evaporates due to high temperature. Sun's energy help it to evaporate.
Why does cold water evaporate slower than hot water?
The kinetic energy of water molecules is lower at a low temperature.
How do evaporate water using a little amount of heat?
Molecules have kinetic energy at any temperature.
What information is needed to calculate the amount of energy needed to heat of volume of water to some temperature?
You need the amount of water, the temperature of the water, and the desired temperature.
What is the temperature when boiling water starts to evaporate?
There is no such temperature to start evaporating. Even in the room temperature or in a refrigerator, water does evaporate. When a particular water molecule absorbs adequate energy (let's say from heat), there will be a phasechange in that molecule from liquid to gas, and it's called evaporation.
What best describes how water evaporate?
The energy of water molecules increase by a temperature increase and some molecules at the surface can escape in the atmosphere. But water is evaporated at any temperature.
Why does water evaporate from your cup?
When water molecules at the surface gain sufficient energy they can escape in the atmosphere. Evaporation (not vaporization) occur at any temperature; but a higher temperature increase the rate of evaporation. The energy of water molecules increase by a temperature increase.
