What is highest boiling point?

The chemical element with the lowest boiling point is Helium and the element with the highest boiling point is Tungsten.

What has the lowest boiling point?

Liquid helium has the lowest boiling point of all — about -452 degrees Fahrenheit, only 4.2 degrees Celsius above absolute zero.

What increases boiling point?

Large molecules have more electrons and nuclei that create van der Waals attractive forces, so their compounds usually have higher boiling points than similar compounds made up of smaller molecules.

What are the strongest to weakest intermolecular forces?

In order from strongest to weakest, the intermolecular forces given in the answer choices are: ion-dipole, hydrogen bonding, dipole-dipole, and Van der Waals forces.

Which has highest boiling point water or oil?

A: Water boils away at 100°C but oil can get much hotter.

What does negative melting point mean?

Negative melting point indicates that it doesn’t require energy for melting but it will liberate energy whenever they start melting.

What liquid boils at room temperature?

Benzene melts at 6°C and boils at 80°C; it is a liquid at room temperature. If both the normal melting point and the normal boiling point are above room temperature, the substance is a solid. Sodium chloride melts at 801°C and boils at 1413°C.

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Density at 20°C Density at 100°C
gas: oxygen 1.33 g/L 1.05 g/L

What affects boiling point?

The boiling point of a liquid depends on temperature, atmospheric pressure, and the vapor pressure of the liquid. When the atmospheric pressure is equal to the vapor pressure of the liquid, boiling will begin.

What makes water boil?

Inside the bubble is the vapor pressure and outside is the water pressure. This means that for water to boil, the temperature must increase until the vapor pressure is equal to the outside pressure and a bubble can form.

Why does boiling point increase with solute?

A nonvolatile solute has a vapor pressure of zero, so the vapor pressure of the solution is less than the vapor pressure of the solvent. Thus, a higher temperature is needed for the vapor pressure to reach the surrounding pressure, and the boiling point is elevated.

What is the weakest type of IMFA?

Relative strength of intermolecular forces of attraction

Intermolecular force Occurs between … Relative strength
London dispersion attraction Temporary or induced dipoles Weakest

Which attractive force is the weakest?

The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction.

What is the weakest force in chemistry?

The weakest force in chemistry is the London dispersion force. … London dispersion force is also called as an induced dipole-induced dipole attraction. These weak intermolecular forces exist between all molecules including ionic or covalent molecules or polar and nonpolar ones.

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