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Why is the melting point of impure water lower than the melting point of pure water plus how can this be explained?
the melting point of IMPURE water is lower because excess chemicals and sediments (and whatever else making it impure) get in the way of the water freezing directly by making it so that when the the water froze, it also had to freeze the sediments and chemicals (or else it wouldn't be frozen)
Who has higher melting point Pure or Impure Substance?
A pure substance typically has a higher melting point than an impure substance. Impurities disrupt the regular arrangement of particles in the substance, making it more difficult for them to overcome the intermolecular forces and transition from solid to liquid state. This results in a lower melting point for impure substances.
Would the freezing point of stearic acid be higher or lower if impured?
The freezing point of stearic acid would be lower if impure due to the presence of impurities disrupting the orderly arrangement of stearic acid molecules. Impurities act as "defects" in the crystal lattice structure, making it easier for the molecules to overcome the intermolecular forces and transition from solid to liquid state.
Can you change the melting point of ice?
yes adding anything that will dissolve into water will alter the chemical structure of the compound. This will cause it to become impure and will alter the freezing and boiling point. This is easily done with salt and sugar.
What is the melting point of impure sulfanilamide?
This question is rather ambiguous, as the amount of impurity would need to be known (i.e. is it 99% pure? 95%? 80%? etc). As the level of impurity rises however, the melting point (freezing point) will drop.
Why is the melting point of impure water lower than the melting point of pure water plus how can this be explained?
the melting point of IMPURE water is lower because excess chemicals and sediments (and whatever else making it impure) get in the way of the water freezing directly by making it so that when the the water froze, it also had to freeze the sediments and chemicals (or else it wouldn't be frozen)
Who has higher melting point Pure or Impure Substance?
A pure substance typically has a higher melting point than an impure substance. Impurities disrupt the regular arrangement of particles in the substance, making it more difficult for them to overcome the intermolecular forces and transition from solid to liquid state. This results in a lower melting point for impure substances.
What will melt faster pure or impure naphthalene?
Impure naphthalene will typically melt faster than pure naphthalene. The impurities present in impure naphthalene lower its melting point, making it easier for the solid to convert into a liquid state at a lower temperature.
Would the freezing point of stearic acid be higher or lower if impured?
The freezing point of stearic acid would be lower if impure due to the presence of impurities disrupting the orderly arrangement of stearic acid molecules. Impurities act as "defects" in the crystal lattice structure, making it easier for the molecules to overcome the intermolecular forces and transition from solid to liquid state.
What is the effect of the salt by usingthe concept of melting point?
Salt water has a lower freezing point and a higher boiling point.
If a substance is impure what will be the two effects on its melting point compared to the literature value?
the impurities will lower the melting point value.
Can you change the melting point of ice?
yes adding anything that will dissolve into water will alter the chemical structure of the compound. This will cause it to become impure and will alter the freezing and boiling point. This is easily done with salt and sugar.
What is the melting point of impure sulfanilamide?
This question is rather ambiguous, as the amount of impurity would need to be known (i.e. is it 99% pure? 95%? 80%? etc). As the level of impurity rises however, the melting point (freezing point) will drop.
The temperature at which a substance freezes is lower than the temperature at which it melts?
The freezing point of a substance is lower than its melting point because freezing involves the removal of thermal energy to transition from liquid to solid, while melting requires adding thermal energy to transition from solid to liquid. The freezing point is where the substance goes from a higher energy state (liquid) to a lower energy state (solid).
Is the freezing point of ice cream lower or higher than the freezing point of water?
It is lower.
Does impure and pure chemicals melt at the same temperature?
No, impure chemicals do not melt at the same temperature as pure chemicals. Impurities can disrupt the crystal lattice structure of a substance, causing the melting point to decrease or broaden. This results in impure substances melting at lower temperatures compared to their pure counterparts.
Is the freezing point of a substance lower that its melting point?
Both are same (Almost).
