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How the melting point of alkenes can be increase by increasing molecular mass?
Wiki User
∙ 12y ago
Melting points are determined by the strength of interaction between molecules in a solid. The greater the force of interaction, the higher the melting point.
Molecular interactions are the result of the attraction between partially charged molecules or ions in a solid. Alkenes have little or no charge; they are nonpolar. In order for alkenes to stick to each other in a solid, they need to have partial charge induced randomly. This is known as London Dispersion Force.
The probability of a partial charge occurring is increased when the size of a molecule's electron cloud increases. Bigger alkenes have bigger electron clouds, and thus have more powerful London dispersion force. More intermolecular force means higher melting points.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoAs lenght of the carbon chain increases, the density increases.
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What is the trend in density in noble gases?
The densities of the noble gases increase with increasing molecular mass. The increase in density is due to the increase in atomic mass. Helium is about one seventh the density of air and can be used in balloons and lighter-than-air craft. Xenon is about five times the density of air.
What is the molecular movement of melting?
the molecular movement is fluid. As a solid, movement was at a minimum, so as it is melting the molecules are moving more freely
What solid is not conductive and has a low melting point?
You think probable to a glass.
Why melting point decrease down the group for Alkali metals but increase for Halogens?
Because the atomic radius increases down the group 1 and decreases down the group of halogen
Which solids is likely to have the lowest melting point?
Molecular Solid
How does molecule size affect melting point?
Intermolecular forces increase as molecular size increases, thus the bigger the molecular size, the bigger the molecular mass, the stronger the intermolecular forces, the more energy required to break the bonds between the molecule, thus a higher melting/boling point.
What is the trend in density in noble gases?
The densities of the noble gases increase with increasing molecular mass. The increase in density is due to the increase in atomic mass. Helium is about one seventh the density of air and can be used in balloons and lighter-than-air craft. Xenon is about five times the density of air.
How does melting point compare among molecular compounds and ionic compounds?
Molecular compounds tend to have lower melting points.
What is the molecular movement of melting?
the molecular movement is fluid. As a solid, movement was at a minimum, so as it is melting the molecules are moving more freely
How does water affect the melting temperature of rock?
In theory yes: increasing pressure will increase the melting point mostly (not for ice!). In practice: it is hardly noticable, not significant at all, for most solid materials.Pressure increases the melting point of rock. The molecules are packed tighter together and thus take more energy to liquefy.
Do simple molecular substances have high or low melting and boiling points?
Yes, molecular solids have relatively low melting points.
Which solid is more likely to have the lowest melting point an ionic solid or molecular solid?
Molecular Solids have a lower melting point
What are the properties of molecular compound?
Molecular compounds generally do not conduct electricity and have low melting points.
Characteristics of a molecular substance?
low melting point
Compared With the Melting Point Of Ionic Compounds The Melting Points Of Molecular Solids Tend To Be?
Ionic compounds have a higher melting point.
Compared with the melting points of ionic compounds the melting points of molecular solids tend to be .?
Ionic compounds have a higher melting point.
What solid is not conductive and has a low melting point?
You think probable to a glass.
