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How is the Hfusion used to calculate volume of liquid frozen the produces 1kj of energy?
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Do liquid particles gain energy when they are frozen?
No, liquid particles lose energy when frozen, everything loses energy when frozen and their molecular movement slows down. Their is a state called 0 degrees Kelvin which is the lowest temperature possible. At 0 degrees Kelvin all molecular motion is stopped and all energy is lost. Liquids would gain energy when heated.
If 30.86g of H2O is frozen (from liquid to solid) how much heat energy is required?
No heat (energy) is required to freeze water (from liquid to solid). Freezing RELEASES energy (heat), as it is an exothermic event. If you want to know how much energy is release, you need to know the heat of fusion for water, and then multiply that by the mass of water being frozen.
Does a cold soda or a frozen soda lose more fizz?
Frozen, the colder the drink the more energy is lost in the reaction of CO2 and oxygen, so the fizz decreases
Is heat added or released during freezing?
This is latent heat. When a liquid freezes heat is released, and when it melts the same amount of energy must be supplied. Similarly when a liquid changes to a vapor, or when a vapor condenses, heat must be supplied or is released. Latent heat varies from one substance to another, and can be quantified as so many calories per gram or kilogram, you can find data in reference tables
What happens to the ice in the clothes?
When you take an ice out of the freezer, it slowly melts. But some of it re freeze by the ice itself. So the small amount of water in the cloth which is re frozen by the ice when the cloth and ice make contact produces the sticking effect.
How is the Hfusion used to calculate volume of liquid frozen that produces 1 kJ of energy?
1kJ 1/Hfusion g/mol ml/g liquid
Does liquid lose chemical energy when frozen?
No. It loses thermal energy.
Which contains the most thermal energy - a boiling pot of water or a frozen lake?
Frozen Lake
Why doesnt a frozen puddle have kinetic energy?
"Kinetic energy" is energy related to movement. If there is no movement, there is no kinetic energy.
Is a refrigerator.kinetic or potential energy?
No, if a puddle of water is frozen particles in the ice do not have kinetic energy because the water is frozen.
What happens to energy particles when they are frozen?
the particles move slow
Compare the motion of particles in the frozen lemonade concentrate to the motion of particles in the lemonade after mixing?
The particles in the frozen lemonade concentrate will be moving, but it will be more of a vibration. The movement of stirring the substance creates friction, which in turn produces heat energy. The heat energy speeds up the particles causing them to move fast and more freely. They are now able to move and slide around each other, opposed to remaining in one relative location.
Will a frozen item cook faster?
No. Time (and energy) are consumed just thawing it.
Do liquid particles gain energy when they are frozen?
No, liquid particles lose energy when frozen, everything loses energy when frozen and their molecular movement slows down. Their is a state called 0 degrees Kelvin which is the lowest temperature possible. At 0 degrees Kelvin all molecular motion is stopped and all energy is lost. Liquids would gain energy when heated.
If 30.86g of H2O is frozen (from liquid to solid) how much heat energy is required?
No heat (energy) is required to freeze water (from liquid to solid). Freezing RELEASES energy (heat), as it is an exothermic event. If you want to know how much energy is release, you need to know the heat of fusion for water, and then multiply that by the mass of water being frozen.
Does a cold soda or a frozen soda lose more fizz?
Frozen, the colder the drink the more energy is lost in the reaction of CO2 and oxygen, so the fizz decreases
What does Anti-Grill mean?
A device that prepares food by quickly chilling it on a very cold surface. It produces food that is frozen on the outside but not on the inside.
