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What are solute and how do they affect the freezing point of a liquid?
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Does mass affect freezing point?
Well, I did an experiment in class on this question. We used different amounts lauric acid and it turned out that the freezing point was pretty much the same for all the samples. So, in all, the freezing point does not depend on the mass of a substance.
What effect does a solute have on the freezing point of a solvent?
When any solute is dissolved into a solvent, the freezing point will always go down.
When a solute is added to a solvent the freezing point of solutions is?
The freezing point is lowered.
The change in the freezing point of a solvent by the addition of a solute is called?
freezing point depression ..
A solute makes the freezing point of a solution lower than the freezing point of the pure solvent because?
The phenomenon you're describing is generally referred to as freezing-point depression, the lowering of the freeze point of a liquid (or solvent) by adding another compound. Freezing point depression is a phenomenon driven by entropic changes in the system containing solvent and solute. As the system is frozen, the solvent forms crystals of high purity regardless of solute molecules being present while solvent crystallizes. Replacement of any solute in the crystal with a solvent molecule takes place spontaneously, since the inability of solute molecules to fit well into the ordered crystal makes the solute-solvent substitution thermodynamically favorable. As the freezing proceeds, solvent molecules continue to leave the liquid state and incorporate into the solid crystal, with each such occurrence leaving behind a smaller volume of liquid in which solute molecules can occupy. The shrinking of liquid volume occupied by a fixed number of solute molecules reduces the dispersion of solute molecules in the liquid, resulting in a reduction of entropy of the solute molecules. Thus, additional energy is required to match the reduced entropy of the solute molecules with that of the solid solvent crystal. The energy required (versus pure solvent) to gap the entropic difference (thus difference in chemical potential) to establish equilibrium but at a freezing temperature lower than that of the pure substance. Note that at low solute concentrations, freezing point depression is a property that depends solely of the number of solute particles and physical properties of the solute. Such properties are called colligative properties.
How does the number of moles affect the freezing point?
Higher the concentration of the solute, lower is the freezing point.
When a non volatile solute added to a volatile liquid what happened to the freezing point and osmotic pressure?
The freezing point is lowered.
What is the tendency of a solute to change the melting point of a solid called?
The answer is "Freezing point depression" on Apex
What affect does a solid nonionizing solute have on the freezing point of a solvent?
The addition of some solids can lower the freezing point of a liquid, a principle used when salt is applied to melt ice on frozen surfaces. (Britanicca Encyclopedia)
What happen to the freezing point when a non volatile solute added to a volatile liquid?
The frezzing point is lowered.
Does adding more solute to a solvent raise its freezing point lower its boiling point raise its boiling point or does not affect its boiling point?
raise its freezing point
Does mass affect freezing point?
Well, I did an experiment in class on this question. We used different amounts lauric acid and it turned out that the freezing point was pretty much the same for all the samples. So, in all, the freezing point does not depend on the mass of a substance.
Freezing point is the point at which a liquid turns into a solid What effect can change the freezing point?
Atmospheric pressure and the presence and concentrations of solutes affect the freezing point.
What effect does a solute have on the freezing point of a solvent?
When any solute is dissolved into a solvent, the freezing point will always go down.
Why is it when a solute is added to a pure liquid the boiling point increases and the freezing point decreases?
Boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. The vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid. At the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.
How does changing the concentration of a solution affect the kf?
Increasing the concentration of a solute the freezing point depression is increased.
How does NaCl lower the freezing point of water?
Any solute lowers the freezing point; there's nothing special about NaCl. One way to think about this is that the solute molecules "get in the way" of the freezing process: they don't fit into the regular crystalline lattice of the solid, which makes it harder to go from a liquid to a solid, which means the freezing point goes down.
