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The value depends on the material being heated. This value is called the specific heat capacity, or just specific heat for short.
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∙ 14y ago
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Why does it take more heat to boil a substance than to melt it?
The energy required to completely separate the molecules in a liquid and convert them to a gas (boiling), is greater than the energy needed to completely separate the molecules in a solid and convert them to a liquid (melting).
Where does the energy needed to melt the iron come from?
The energy comes from the heat to melt the iron
How much energy is needed to melt 25.4grams of l2?
Iodine sublimes - it does not melt
What is the definition for latent heat of melting?
The amount of heat released / absorbed from a substance at constant temperature as you change state from liquid->solid / solid->liquid.
Is water the only substance that occurs naturally as solid liquid and gas?
No. Many substances melt and boil. Most of the elements, and many substances melt and boik without decomposition.
Why does it take more heat to boil a substance than to melt it?
The energy required to completely separate the molecules in a liquid and convert them to a gas (boiling), is greater than the energy needed to completely separate the molecules in a solid and convert them to a liquid (melting).
What is enthalpy of fusion vaporization?
Enthalpy of fusion/vaporization is the amount of energy added to a system to melt of boil a substance or the amount of energy removed from a system to condense or freeze a substance.
What is the latent heat of fusion?
The amount of energy it takes to boil a substance
Why does a substance take longer to boil than melt?
because substances boil at a higher temperature than when it melts. therefore, boiling takes more energy than melting and more energy takes more time.
Why is heat energy needed to melt a solid. What is this heat energy called?
the energy that goes into changing a substance from a solid to a liquid (melting) is called the latent heat of fusion.
Where does the energy needed to melt the iron come from?
The energy comes from the heat to melt the iron
When a substance melt what happens to its overall energy?
It increases
How do you turn a liquid into a solid?
You freeze the substance! (You remove energy from the system.)
What is the amount of energy required to raise the temperature of 1 kilograms of a substance by 1 kelvin is called?
Specific heat is the amount of heat needed to melt one kilogram of a substance...heat of fusion
How much energy is needed to melt 25.4grams of l2?
Iodine sublimes - it does not melt
What does the latent heat of fusion?
The energy required to melt a substance
What does the latent of fusion measure?
The energy required to melt a substance
