This is simply because the evaporation enthalpy is bigger than the enthalpy of fusion. ΔTf = -Kf · m (m= molality) ΔTb = Kb · m (m= molality) what is important is that Kf is proportional to 1/Enthalpy of fusion and the sam is true for Kb (with enthalpy of evaporation)
Yes.
Freezing point is the temperature at which a liquid becomes a solid.
Freezing point depression is the lowering of a substance's freezing point by adding a nonvolatile solute.
Freezing point is the phase change from a liquid to a solid, whereas boiling point is the phase change from a liquid to a gas.
When adding a solute to a solvent, the freezing point decreases and is also known as freezing-point depression. Hence when naphthalene is added to camphor the freezing point decreases.
Freezing point depression is not a medical term, but a term of physics. It refers to the scientific concept of when the freezing point of a liquid is lowered by adding something to it. For example: The freezing point of water is 0 degrees Celcius, but if salt is added to water, the freezing point is lower, and will still be a liquid at 0 degrees.
32 f 0 c
This is the modification of melting (freezing) point due to impurities in the material.
This is the property of freezing point depression and boiling point elevation. This is because of the solute absorbing the energy added to the system to heat its own molecules and so it would require more energy to boil the solvent. Likewise for freezing point depression, the molecules retain more energy.
what is the difference between freezing and boiling point
The depression of the freezing point is dependent on the nature of solvent and concentration of solute.
The answer is "Freezing point depression" on Apex
freezing point depression ..
Increasing the concentration of the solute the freezing point decrease.
There is no difference. If it is frozen the melting point is 32 degrees Fahrenheit. If it is not frozen, the freezing point is 32 degrees Fahrenheit.
They are the same, though a liquid's freezing point can vary. For example, magma's freezing point is quite high, and water's freezing point is lower, at 32 degrees Fahrenheit.
The freezing point depression constant for Naphthalene is 6.9 degrees Celsius/mhttp://en.wikipedia.org/wiki/Freezing-point_depression
When solid start to turn into liquid its melting point. When liquid start turning into solid its freezing point.
f.p depression = (freezing point of pure solvent)-(freezing point of solution) -------> 178.4-166.2=12.2
Substances which are insoluble in a given solvent do not cause a freezing point depression in that solvent.
The difference is 100 oC.