Admin Table of Contents
- 1 Why does the specific latent heat of water have a high value?
- 2 Why is the specific heat of water higher than water vapor?
- 3 What is high latent heat of fusion?
- 4 Why is latent heat of vaporization higher than specific latent heat of fusion?
- 5 Why does specific heat capacity increase with temperature?
- 6 What is the specific latent heat of fusion of water?
- 7 Why is the latent heat of vaporization of water greater?
- 8 What is the high latent heat of fusion of water?
- 9 Which is the correct description of the specific heat of fusion?
Why does the specific latent heat of water have a high value?
A direct result of the hydrogen bond in water is the high heat capacity of water. As noted, a calorie is the amount of heat required to raise the temperature of 1 g of water 1 °C. The heat capacity of water compared to that of most other substances is great.
Why is the specific heat of water higher than water vapor?
That’s why water is able to flow past itself, but also bond together—it’s constantly forming and breaking these bonds. These bonds are also why liquid water has a high specific heat. Because of this, it takes more energy to heat water than it does other substances.
What does a high latent heat of fusion mean?
The latent heat of fusion is the heat required for an object to go from the solid state to the liquid state, or vice versa. Since its value is generally much higher than specific heat, it allows you to keep a beverage cold for much longer by adding ice than simply having a cold liquid to begin with.
What is high latent heat of fusion?
The heat of fusion of water is unusually high. It is also a latent heat and is sometimes called the latent heat of fusion. It has only one value for water, because water freezes at one value (0 °C), and it is 79.71 cal/g or the rounded number 80 cal/g. The high heat of fusion of water is used in frost control.
Why is latent heat of vaporization higher than specific latent heat of fusion?
The energy required to completely separate the molecules, moving from liquid to gas, is much greater than if you were just to reduce their separation, solid to liquid. Hence the reason why the latent heat of vaporization is greater than the latent heat of fusion.
What is the latent heat of fusion of water?
334 Joules per gram
We know that the Latent heat of fusion of water is 334 Joules per gram or 334000 Joules per Kilogram.
Why does specific heat capacity increase with temperature?
The heat goes first into increasing the kinetic energies of the molecules. As the substance heats up, the average kinetic energy of the molecules increases. The collisions impart enough energy to allow rotation to occur. Rotation then contributes to the internal energy and raises the specific heat.
What is the specific latent heat of fusion of water?
334
Specific latent heat
| Substance | Specific latent heat of fusion (kJ/kg) | Specific latent heat of vaporisation (kJ/kg) |
|---|---|---|
| Water | 334 | 2,260 |
| Lead | 22.4 | 855 |
| Oxygen | 13.9 | 213 |
What is high heat of fusion of water?
The heat of fusion of water is unusually high. The heat of fusion is the quantity of heat necessary to change 1 g of a solid to a liquid with no temperature change (Weast, 1964, p. F-44). It is also a latent heat and is sometimes called the latent heat of fusion.
Why is the latent heat of vaporization of water greater?
The energy required to completely separate the molecules, moving from liquid to gas, is much greater that if you were just to reduce their separation, solid to liquid. Hence the reason why the latent heat of vaporization is greater that the latent heat of fusion. The difference in enthalpies comes from the fact…
What is the high latent heat of fusion of water?
The heat of fusion of water is unusually high. It is also a latent heat and is sometimes called the latent heat of fusion. It has only one value for water, because water freezes at one value (0 °C), and it is 79.71 cal/g or the rounded number 80 cal/g. The high heat of fusion of water is used in frost control.
Which is an example of the latent heat of solidification?
An example of the latent heat of solidification can be observed in the cooling of water. When water, initially kept in the liquid state, is cooled to temperatures below zero degrees celsius, the temperature of the liquid water steadily drops until it approaches 0 o C.
Which is the correct description of the specific heat of fusion?
If unit mass of the substance is considered, the energy required to convert it into a liquid under constant pressure is called the specific heat of fusion for the substance. If the change in enthalpy is calculated on a per-mole basis, the latent heat of fusion is referred to as the molar heat of fusion of the substance.