# How do you know which has a higher boiling point?

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The intermolecular force (IMF) can be used to predict relative boiling points. The stronger the IMF, the lower the vapor pressure of the substance and the higher the boiling point. Therefore, by comparing the relative IMF strengths of compounds, we can predict their relative boiling points.

## How do you know which solution has the highest boiling point?

Multiply the original molar concentration (m) of the solution by the number of particles formed when the solution dissolves. This gives the total concentration of dissolved particles. Compare these values. The higher the total concentration, the higher the boiling point and the lower the freezing point.

## How do you know if an element has a high or low boiling point?

Moving up and down the periodic table, we see that there is a rough correlation between the atomic weight of an element and its boiling point. Lighter elements such as hydrogen and helium tend to have very low boiling points, while elements with greater atomic mass boil at higher temperatures.

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## How do you determine boiling point?

Boiling Point Equation is often calculated as follows: Kb = RTb2M/ΔHv, where R is the universal gas constant. Tb is the boiling point of the pure solvent [K] M is the molar mass of the solvent.

## What determines boiling point?

A liquid boils at the temperature at which its vapor pressure equals the pressure of the gas above it. The lower the pressure of the gas above the liquid, the lower the temperature at which the liquid boils.

## Which of the following is highest boiling point?

Because hydrogen bonding is strong in HF. The boiling point of HF is very high. Therefore, HF has the highest boiling point.

## Which will most likely have the highest boiling point?

• Among the given options, (c) Ethanol has the highest boiling point because of the strongest intermolecular force of hydrogen bonding.
• The remaining…

## What does it mean to have a higher boiling point?

The boiling point is the temperature at which the vapor pressure of a chemical equals its atmospheric pressure. Simply put, it measures the temperature at which a chemical substance boils. As with the melting point, the higher the boiling point, the greater the intermolecular forces and the lower the vapor pressure.

## How do you determine boiling point and melting point?

The fixed temperature at which a solid changes to a liquid is called the melting point. Example: Ice begins to melt at 0°C, changing from a solid to a liquid. Boiling Point: The fixed temperature at which a liquid begins to change into a gas is called the boiling point.

## Which one has the highest and lowest boiling point?

The element with the lowest boiling point is helium and the element with the highest boiling point is tungsten.

## How do you know which has a higher melting point?

The stronger the intermolecular forces, the more energy is required, resulting in a higher melting point. Much of the intermolecular forces depend on the strength with which the atoms in a molecule attract electrons, or their electronegativity.

## What has a lower boiling point?

The element with the lowest boiling point is helium.

## Which has the highest boiling point quizlet?

I2 has the highest molar mass and therefore the highest boiling point. Since all halogens are similar in other respects, one would expect I2 to have the greatest dispersive force and therefore the highest boiling point (which it does).

## Which substance has the higher boiling point and why?

Because larger molecules have more electrons and nuclei to produce van der Waals attraction, their compounds will typically have higher boiling points than similar compounds composed of smaller molecules. It is very important to apply this rule only to similar compounds.