Main distinction – Boiling suggest vs. Melt Point

Melting point and boiling point both describe temperatures at which phase alters occur in substances. The main difference between boiling allude and melting point is that the melting allude is characterized as the temperature in ~ which solid and liquid phases room in equilibrium, vice versa, the boiling suggest is the temperature at which the vapour press of a liquid is same to the outside pressure.

You are watching: Difference between boiling point and melting point


*

Difference in between Boiling point and Melting allude – Melting and Boiling


What is melt Point

Melting suggest is defined for a substance together the temperature at which its solid and also liquid phases deserve to exist in equilibrium. That is at this temperature the a solid will begin melting to end up being a liquid. In ~ this temperature, the molecules developing the substance are gaining enough kinetic power to get over the intermolecular pressures which hold them in addressed positions and also they acquire the capability to move around. The freezing point describes the temperature at which a liquid deserve to start forming a solid. A substance can be supercooled listed below its freezing allude without it developing a solid, so technically, melting and also freezing points are not the same. However, we have the right to assume them to be virtually the exact same for a wide range of cases.


What is cook Point

Boiling point can be characterized for a liquid as the temperature in ~ which its vapour pressure is same to external pressure. In ~ this temperature, the problem in liquid phase enters the gas phase. If the outside pressure is larger, then it take away a higher temperature because that the vapour press to become equal to the external pressure. Consequently, the boiling suggest is highly dependent on outside pressure. For instance, water have the right to be boiled in ~ much reduced temperatures once the exterior pressure is reduced (around 70o C at mount Everest because that example). The normal boiling point is characterized as the temperature in ~ which the vapour press of the fluid is same to 1 atm, i.e. The temperature at which liquid would certainly boil as soon as the external pressure is equal to 1 atm.

Difference Between Boiling point and melting Point

Definition of Boiling suggest and melt Point

Melting point is the temperature in ~ which solid and liquid phases the a substance space in equilibrium.

Boiling point is the temperature at which its vapour press is equal to the external pressure.

Phase Change

At the melting point, a solid becomes a liquid.

At the boiling point, a fluid becomes a gas.

Pressure Dependence

Melting point does not readjust with transforms in the external pressure.

See more: When Do Great Dane Puppies Open Their Eyes ? Puppy Development From 1 To 8 Weeks

Boiling point alters with changes in the outside pressure.

Image Courtesy:(Untitled) by Fotocitizen (Own work) , via Pixabay (modified)“Boiling Water” by Scott Akerman (Own work) , via flickr (modified)

*