# Question: What takes more energy boiling or freezing?

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## Does it take more energy to boil or freeze water?

It takes 100 calories to heat 1 g. water from 0˚, the freezing point of water, to 100˚ C, the boiling point. … On the other hand, you would have to remove 80 calories from 1 g of pure water at the freezing point, 0˚ C, to convert it to 1 g of ice at 0˚ C.

## Does melting or freezing take more energy?

For melting the order of the system is decreasing, so energy must be supplied to increase the randomness of the molecules. For freezing the molecules are becoming more ordered, so energy is lost from the system.

## What takes more energy boiling or melting?

Taking this information in hand we can see that that boiling needs approximately 6 to 7 times more amount of energy than in melting. This is the reason it takes longer in boiling than in melting.

## Does freezing require energy?

Note that melting and vaporization are endothermic processes in that they absorb or require energy, while freezing and condensation are exothermic process as they release energy.

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## How cold is boiling water trick?

It’s important that the water be as close to boiling and the outside air be as cold as possible. The effect is less spectacular or won’t work if the water temperature drops below 200 degrees or if the air temperature climbs above -25 degrees.

## What happens to energy when something freezes?

When water freezes it gives up some of the water’s energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released. Heat energy was actually being released.

## Does boiling water absorb or release energy?

The amount of energy absorbed when a substance boils, and released when the same amount of substance condenses, is the same. … The phase transition is solid to gas, so energy will be absorbed. The process involves the ice melting to water, the water heating from 0 °C to 100 °C, then the water boiling to steam.

## Is energy released during evaporation?

Energy is required to change from solid to liquid, liquid to gas (evaporation), or solid to gas (sublimation). Energy will be released to change from liquid to solid (fusion), gas to liquid (condensation), or gas to solid. … Evaporation is a cooling process.

## Does the solid give off energy or absorb energy when it melts how much energy?

When you reach a temperature of 0°C (the melting point for water), the heat you add is no longer absorbed as kinetic energy. Instead, the added heat is absorbed as potential energy and the particles separate from each other.

Change of State.

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Substance Heat of Fusion, Hf (J/kg)_ Heat of Vaporization, Hv (J/kg)_
Water 3.34×105 2.26×106

## What degrees does ice melt?

At temperatures above 32°F (0°C), pure water ice melts and changes state from a solid to a liquid (water); 32°F (0°C) is the melting point. For most substances, the melting and freezing points are about the same temperature.

## What are 3 examples of freezing?

What are 3 examples of freezing?

• Freezing of water to form ice in an ice cube tray.
• Formation of snow.
• Congealing of bacon grease as it cools.
• Solidification of melted candle wax.
• Lava hardening into solid rock.

## What happens during freezing?

Freezing occurs when a liquid is cooled and turns to a solid. Eventually the particles in a liquid stop moving about and settle into a stable arrangement, forming a solid. … If a gas is cooled, its particles will eventually stop moving about so fast and form a liquid.