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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.
What else can I help you with?
What do the term boiling point snd freezing point mean?
It means boiling points are hot and freezing points are cold.
How are boiling and freezing points of a sample of water affected when salt is dissolved in the water?
the freezing and boiling points rise significantly- this is why when you boil water in a saucepan, like for pasta, it is advised that you put salt in the water so that the water boils at a higher temperature, thus allowing you to heat the water to a higher temperature. hope this helps
How does the presence of a solute affect the freezing and boiling points of a solvent?
They usually lower freezing points, think antifreeze. And salt water freezes at a lower temp than fresh, that is why they put salt on ice. And they raise boiling points, think salt in water when making spaghetti. Or, again antifreeze.
What is the effect of a soluble and nonvolatile impurity on the boiling point of a liquid?
A soluble nonvolatile impurity increases the boiling point of a liquid because it disrupts the intermolecular forces between the solvent molecules, making it more difficult for the liquid to vaporize. This phenomenon is known as boiling point elevation.
Does the salt decreases the melting point of ice?
Adding of any type of impurity in water decreases its melting point. You might have studied that depression in freezing point is a "colligative" property according to which adding of any impurity to a pure liquid decreases the melting point and increases the boiling point of that liquid. So, adding of salt is not the only method of decreasing the melting point.
Does the boiling point of a liquid decreases increases or stay the same if the intermolecular force increases?
Generally, the boiling point of a liquid increases if the intermolecular force, i.e. pressure, increases.
The boiling point of a liquid can change with air?
The boiling point of a liquid can change with air pressure. As air pressure decreases, the boiling point of a liquid also decreases, meaning it will boil at a lower temperature. Conversely, as air pressure increases, the boiling point of the liquid increases, requiring a higher temperature to boil.
How does pressure affect the boiling point?
Pressure affects the boiling point by either raising or lowering it. When pressure increases, the boiling point also increases, making it harder for a liquid to turn into a gas. Conversely, when pressure decreases, the boiling point decreases, making it easier for a liquid to turn into a gas.
As the pressure of a system changes boiling points can change in what direction?
As the pressure of a system increases, the boiling point of a liquid also increases. This occurs because higher pressure requires more energy (higher temperature) for the vapor pressure of the liquid to equal the surrounding pressure. Conversely, when the pressure decreases, the boiling point of the liquid decreases, allowing it to boil at lower temperatures.
Compare boiling and freezing point?
for example ....water:freezing point: liquid freezes to ice boiling point: liquid boils and turns into vapor melting point: ice melts to liquid
When atmospheric pressure increases what happpens to the boiling temperature of a liquid?
The boiling temperature of a liquid increases as the gas pressure a the liquid's surface increases.
What happens to the altitude and boiling point as the pressure is increased?
As altitude increases, pressure decreases, so boiling point decreases, so the liquid would boil at a lower temperature and would not be able to get as hot and remain a liquid. As pressure is increased, boiling point increases, meaning the liquid could get hotter than normal and remain a liquid.PV=nRT - pressure x volume = the number of moles x constant x temperature
Will a liquid turn to gas at its freezing point?
No it would be the boiling point. At freezing point it becomes solid
What are the difference between freezing point and boiling point?
The freezing point is the temperature at which a liquid turns into a solid, while the boiling point is the temperature at which a liquid turns into a gas. The freezing point is typically lower than the boiling point for a substance.
What do terms ''boiling point'' and '' freezing point '' mean?
Boiling point is the temperature at which a liquid changes into a gas. Freezing point is the temperature at which a liquid changes into a solid.
When the temperature decreases liquid turns into what?
When the temperature decreases, liquid turns into solid through a process called freezing.
What do the term boiling point snd freezing point mean?
It means boiling points are hot and freezing points are cold.
