The temperature in which a given substance will change from a liquid to a gas is its boiling point.
Every element, compound and mixture has a different boiling point. Use an SI data book or the internet to find the boiling point of a particular suubstance.
The boiling temperatures for different substances and elements vary, it is impossible to say an exact temperature which any and every substance will boil at.
The temperature at which a given substance changes from solid to liquid is the meltling point of that substance.
boiling point
Its called the boiling point.
Melting Point
Any substance with a melting point above this given temperature.
Boiling point is the temperature at which a substance turns into a gas, while melting point is the temperature at which a substance turns into a liquid state from a solid state. The boiling point is always a higher temperature then the melting point. The melting point has a substance turn into a liquid from solid, and boiling point has a liquid turn into a gas.
The boiling point temperature remains constant because liquids evaporate at this point. If the temperature drops the liquid will no longer boil. At a higher temperature the vapor becomes hotter, not the liquid.
it's because it releases the latent heat of fusion. Latent heat means energy is given out when a substance changes from liquid to solid without a change in temperature. and the transfer of energy doesnt change the KE of the particles, so the temperature remains unchanged. lanten heat gives rise to the change in PE of the particles during the change of state only
It's determined by the spacing of its atoms. If they are spaced close together in a rigid formation it's a solid. Somewhat spread out and fluid in formation is a liquid. Spaced far and very active in its motion is a gas.
Melting point. That depends entirely on the substance. Different things liquefy at different temperatures.
Any substance with a melting point above this given temperature.
Heat of vaporisation is the amount of heat require to transform substance from liquid to gas state at constant temperature. Heat of vaporisation expressed in kJ/kg of substance.
The heat energy required to change a substance between solid & liquid at constant temperature is called the "latent heat of fusion". If the change is from solid to liquid the substance gains this energy. If the change is from liquid to solid the substance gives up this energy. The exact amount of latent heat of fusion is different for different substances.
When a substance is liquid and it changes to gas, we call that boiling.
Changing a substance from solid into a liquid is called a change of state or a change of phase. Melting is the name given to the change of state from a solid to a liquid.
Well, if you were for example discussing the the physical change of substance from one state to another, eg. Ice to liquid water than the relation to physics concerns energy. When discussing temperature change what you are in reality dealing with is how much energy a given substance or object contains.
We know that for any given substance, and at a given pressure, the gas phase exists at a higher temperature than the liquid phase, which exists at a higher temperature than the solid phase. And temperature measures heat energy per molecule or atom, hence, gas particles have more energy than particles of the same substance in their liquid or solid phase.
Boiling point is the temperature at which a substance turns into a gas, while melting point is the temperature at which a substance turns into a liquid state from a solid state. The boiling point is always a higher temperature then the melting point. The melting point has a substance turn into a liquid from solid, and boiling point has a liquid turn into a gas.
The boiling point temperature remains constant because liquids evaporate at this point. If the temperature drops the liquid will no longer boil. At a higher temperature the vapor becomes hotter, not the liquid.
Evaporation is the phenomenon of transformation from liquid to gas which occur at the surface of the liquid. Evaporation is possible also at a temperature lower than the boiling point.
You can find the mass of a substance dissolved in a solution given temperature and joules using the relation q=mc(change in T). Where q is heat in joules, m is the mass, c is the specific heat capacity, and T is the temperature.