Asked By: Edward Long Date: created: Nov 16 2022

Do alkanes have lower or higher boiling point

Answered By: Francis Cook Date: created: Nov 16 2022

Larger molecules have greater surface areas and consequently interact more strongly; more energy is therefore required to separate them.

For a given molar mass, the boiling points of alkanes are relatively low because these nonpolar molecules have only weak dispersion forces to hold them together in the liquid state..

Asked By: Jaden Adams Date: created: Nov 15 2021

Are all alkanes flammable

Answered By: Geoffrey Ramirez Date: created: Nov 18 2021

In general, alkanes show a relatively low reactivity. … Lower alkanes in particular are highly flammable and form explosive mixtures (methane, benzene) with air (oxygen). Solubility of alkanes in water is very low. The physical properties of alkanes follow a similar trend as seen in the regularity of alkane structures.

Asked By: Bruce Johnson Date: created: Jan 30 2022

Do alkenes have higher boiling points

Answered By: Morgan Barnes Date: created: Feb 01 2022

The boiling point of each alkene is very similar to that of the alkane with the same number of carbon atoms. … The more intermolecular mass is added, the higher the boiling point. Intermolecular forces of alkenes gets stronger with increase in the size of the molecules.

Asked By: Oliver Brooks Date: created: Jul 11 2022

Do Cycloalkanes have a higher boiling point

Answered By: Harold Turner Date: created: Jul 14 2022

The physical properties of cycloalkanes are similar to those of alkanes, but they have higher boiling points, melting points and higher densities due to the greater number of London forces that they contain.

Asked By: Evan Lewis Date: created: Nov 19 2022

Which alkene will most likely to have the highest boiling point

Answered By: Alan Adams Date: created: Nov 21 2022

The Alkene propene has a boiling point of . The Alkene pentene has a boiling point of . The Alkene hexane has a boiling point of . It is obvious that base on the data above, the alkene that has the highest boiling point is Hexane which boils at 68 degrees celcius.

Asked By: Chase Hall Date: created: Jan 24 2022

What effect does branching have on boiling point

Answered By: John Morgan Date: created: Jan 24 2022

As branching increases, the surface area of the molecule decreases which results in a small area of contact. As a result, the Van der Waals force also decreases which can be overcome at a relatively lower temperature. Hence, the boiling point of an alkane chain decreases with an increase in branching.

Asked By: Simon Cox Date: created: Sep 15 2022

Why do boiling points increase

Answered By: Morgan Lopez Date: created: Sep 16 2022

Boiling Points. … 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.

Asked By: Devin Gray Date: created: Oct 30 2022

How do you know which solution has the highest boiling point

Answered By: Graham Murphy Date: created: Oct 31 2022

Multiply the original molality (m) of the solution by the number of particles formed when the solution dissolves. This will give you the total concentration of particles dissolved. Compare these values. The higher total concentration will result in a higher boiling point and a lower freezing point.

Asked By: Walter Cook Date: created: Sep 16 2022

Which substance has the highest melting and boiling points

Answered By: Colin Mitchell Date: created: Sep 17 2022

tungstenIn the absence of nucleators water can exist as a supercooled liquid down to −48.3 °C (−54.9 °F; 224.8 K) before freezing. The chemical element with the highest melting point is tungsten, at 3,414 °C (6,177 °F; 3,687 K); this property makes tungsten excellent for use as electrical filaments in incandescent lamps.

Asked By: Oswald Jackson Date: created: Apr 23 2022

What is the effect of branching on melting and boiling point

Answered By: Wyatt Walker Date: created: Apr 25 2022

Starting with the simplest branched compound, as you increase branching, you will increase the melting point, but decrease the boiling point.

Asked By: Geoffrey White Date: created: Dec 31 2022

Do alkynes have higher boiling points than alkanes

Answered By: Tyler Allen Date: created: Dec 31 2022

Alkynes have higher boiling points than alkanes or alkenes, because the electric field of an alkyne, with its increased number of weakly held π electrons, is more easily distorted, producing stronger attractive forces between molecules.

Asked By: Harold Reed Date: created: Feb 01 2022

Do double bonds have higher boiling points

Answered By: Aaron Turner Date: created: Feb 03 2022

Cis double bonds prevent the tight packing between the hydrocarbon chain, thus lowering intermolecular attractions. This decreases boiling point.

Asked By: Mason Bryant Date: created: Nov 10 2022

Why do alkanes have higher boiling points

Answered By: Harold Parker Date: created: Nov 13 2022

Alkanes have low melting or boiling points because of the very weak intermolecular forces between alkane molecules. … This means that there are more (relatively) stronger intermolecular forces between the molecules. As a result, it takes more energy to break these forces, and thus the melting or boiling points increase.

Asked By: Nathan Bryant Date: created: Dec 12 2022

Why do alkanes have higher boiling points than alkenes

Answered By: Brandon Richardson Date: created: Dec 13 2022

Alkenes. In their simplest form (where no substitution etc. has occurred) alkanes tend to have very close boiling points to alkenes. … The more intermolecular mass is added, the higher the boiling point. Intermolecular forces of alkenes gets stronger with increase in the size of the molecules.

Asked By: Albert Martinez Date: created: Dec 02 2022

What are the strongest to weakest intermolecular forces

Answered By: Jayden Russell Date: created: Dec 04 2022

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.

Asked By: Oscar Gonzalez Date: created: Feb 20 2022

Why do straight chains have higher boiling points

Answered By: Justin Gray Date: created: Feb 20 2022

A straight chain alkane will have a boiling point higher than a branched chain alkane because of the greater surface area in contact with other molecules. … Branching makes molecules more compact thus reduces the surface area.

Asked By: Neil Price Date: created: Feb 07 2022

Why does increased branching lower boiling point

Answered By: Cole Bell Date: created: Feb 09 2022

Branching decreases the boiling point So the increase of surface area increases the ability of individual molecules to attract each other. Branching in molecules decreases the surface area thereby decreasing the attractive force between individual molecules. As a result, the boiling point decreases.

Asked By: Herbert Jenkins Date: created: Dec 23 2021

Which alkane has the highest boiling point

Answered By: Martin Cook Date: created: Dec 25 2021

Nonane1. Nonane will have a higher boiling point than octane, because it has a longer carbon chain than octane. 2. Octane will have a higher boiling point than 2,2,3,3‑tetramethylbutane, because it branches less than 2,2,3,3‑tetramethylbutane, and therefore has a larger “surface area” and more van der Waals forces.

Asked By: Jeremiah Lopez Date: created: Aug 08 2022

Which alcohol has the highest boiling point

Answered By: Sebastian Wilson Date: created: Aug 10 2022

ethanol*Ph represents the phenyl group, C6H5—. The boiling points of alcohols are much higher than those of alkanes with similar molecular weights. For example, ethanol, with a molecular weight (MW) of 46, has a boiling point of 78 °C (173 °F), whereas propane (MW 44) has a boiling point of −42 °C (−44 °F).

Asked By: Jeffery Jackson Date: created: Sep 13 2022

What is the effect of branching on melting and boiling points of alkanes

Answered By: Bernard Williams Date: created: Sep 16 2022

Solution : For the same number of C atoms, increased branching leads to a more compact molecule that can pack more clocely into a crtstal lattice. The intermolecular van der Waals forces of attraction are stronger and have higher melting poins.

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