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What is the difference between heat of fusion and heat of vaporization?
Wiki User
∙ 13y ago
Latent heat is the amount of thermal energy required to change the phase of a substance. Latent heat of fusion is the amount of energy needed to change it from a solid to liquid or a liquid to solid, and the latent heat of vaporization is the thermal energy needed to change from a liquid to gas or a gas to liquid.
For example, in the equation Q = mL, Lfusion (latent heat of fusion) for water is 75.5 cal/gram. Lvaporization (latent heat of vaporization) for water is 539 cal/gram. Substances have different latent heats.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoheat of fusion is the heat absorbed by a substance to turn it from a solid to a liquid(temp needs to remain constant) and heat of vaporization is the energy needed for a substance to go from a liquid to a gas.
Wiki User
∙ 14y agoYes and no.
Both of them are numbers that describe the energy it takes to change the 'state' of a substance ...
solid, liquid, gas. But they refer to different state changes.
Heat of fusion is is the energy involved in changing between solid and liquid.
Heat of vaporization is the energy involved in changing between liquid and gas.
Wiki User
∙ 11y agoHeat of vaporization is the enthalpy change when one mole of a liquid is transformed into one mole of a gas.
Heat of fusion is the enthalpy change when one mole of a solid is transformed into one mole of a liquid.
Wiki User
∙ 11y agoHeat of fusion: the change of enthalpy involved whem one mole of solid is transformed in liquid.
Heat of vaporization: the change of enthalpy involved whem one mole of liquid is transformed in gas.
Wiki User
∙ 14y agoheat of sublimation does not cause vapor but vaporization does
Wiki User
∙ 14y agoNo, not in general. For water, the heat of vaporization is about an order of magnitude larger than the heat of fusion.
Wiki User
∙ 7y agoHow much energy is released to the environment by 150 grams of condensing water vapor
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The molar heats of sublimation and fusion of iodine are 62.3kjmol and 15.3kjmol respectively calculate the molar heat of vaporization of liquid iodide?
It is a known fact : Molar heat of sublimation = molar heat of fusion + molar heat of vaporization so, molar heat of vaporization = molar heat of sublimation - molar heat of fusion Mv = 62.3 kJ/mol - 15.3 kJ/mol Mv = 47 kJ/mol.
The heat needed to boil away one gram of a liquid at its boiling point is?
The heat needed to melt one gram of a solid at its melting point is the heat of fusion.
What is the heat energy released when water vapor change to a liquid called?
The heat energy released when water vapor condenses to a liquid is called "heat of vaporization".
What is the heat of vaporization for gold?
The heat of vaporization for gold is 324 kJ·mol−1.
What is the difference between latent heat of fusion and latent heat of vapourization?
the heat which is absorbed by a substance for changing solid into liquid state by keeping temperature constant is called latent heat of fusion while the heat which is evolved during phase change of liquid to vapour state at constant temperature is called latent heat of vapourization
The amount of energy needed to change a material from a solid to a liquid is the heat of what?
The latent heat of evaporation
Draw and discuss the relationship of heat of fusion and heat of vaporization?
There is no relationship between heat of fusion and heat of vapourisation
The molar heats of sublimation and fusion of iodine are 62.3kjmol and 15.3kjmol respectively calculate the molar heat of vaporization of liquid iodide?
It is a known fact : Molar heat of sublimation = molar heat of fusion + molar heat of vaporization so, molar heat of vaporization = molar heat of sublimation - molar heat of fusion Mv = 62.3 kJ/mol - 15.3 kJ/mol Mv = 47 kJ/mol.
Which heat changes the state of a substance without changing its temperature?
both the heat of fusion and the heat of vaporization
What is the scientific name for ice forming and melting?
For forming it is Heat of (Fusion) and for melting its Heat of (Vaporization).
What is heat fusion and heat of vaporization measures of?
The heat of fusion is the amount of heat (not temperature) required to change a solid to a liquid. It is also known as the melting point. The heat of vaporization is the amount of heat (not temperature) required to change a liquid to it's gaseous state. It is also know as it's boiling point.
What is the relation of the molar heat of fusion to the molar heat of vaporization?
Molar heat of fusion: the heat (enthalpy, energy) needed to transform a solid in liquid (expressed in kJ/mol). Molar heat of vaporization: the heat (enthalpy, energy) needed to transform a liquid in gas (expressed in kJ/mol).
What is it called when heat energy required to break up the attraction of liquid molecules?
When liquid molecules absorb enough heat energy, evaporation occurs.
The heat needed to boil away one gram of a liquid at its boiling point is?
The heat needed to melt one gram of a solid at its melting point is the heat of fusion.
What is the different between vaporization evaporation and boiling?
The difference between them is that boiling is when you heat a liguid and it turns into a gas, vaporization is when a liquid changes into a gas and evaporation occurs at the surface of a liquid beneath its boiling point.
Q - What is the difference between latent heat of fusion and latent heat of solidfication?
They are the same thing. Fusion and solidification both mean the changing of a liquid to a solid.
Why does the temperature stops rising during melting and boiling point?
Because the latent heat of fusion and latent heat of vaporization are very high
