Place these hydrocarbons in order of decreasing boiling point. Compound Structure butane CH3CH2CH2CH3 pentane CH3CH2CH2CH2CH3 2,2-dimethylpropane CH3 | CH3−C−CH3 | CH3 hexadecane CH3(CH2)14CH3 paraffin

Question

oily4311 oily4311

06-09-2019
Chemistry

contestada

Place these hydrocarbons in order of decreasing boiling point. Compound Structure butane CH3CH2CH2CH3 pentane CH3CH2CH2CH2CH3 2,2-dimethylpropane CH3 | CH3−C−CH3 | CH3 hexadecane CH3(CH2)14CH3 paraffin

Respuesta :

Otras preguntas

the first step in writing a research paper is to?

what is the product of 65(cos(14°)+ i sin(14°)) and 8(cos(4°)+ i sin(4°))

Historians label events as a turning point when it?

Pettit printing company has a total market value of $100 million, consisting of 1 million shares selling for $50 per share and $50 million of 10 percent perpetu

what is the volume of the solid ?

read the following excerpt from the preamble of the bill of rights: congress of the united states begun and held at the city of new-york, on wednesday the four

Scientist have studied the return of plant life on mount st. helens ever since the volcano erupted in 1980. wildflowers began colonizing the area,followed by sh

1. explain the steps to use coordinates in calculating the perimeter and area of polygons? explain your procedure when working with diagonal sides and irregular

Kevin works at a restaurant. He stacks glasses as shown. Let x be the number of glasses and f(x) be the height of the stack. If 5.5 inch glasses with 1.2 inch l

Through what method can malware evade antivirus software detection, so that the software no longer identifies the malware by its signature

tirana tirana · Answer 1 · 2019-09-12T18:27:46+02:00

Answer:

Order of hydrocarbons in decreasing order of boiling point:

Paraffin > Hexadecane > Pentane > Dimethylpropane > Butane

Explanation:

Boiling points of hydrocarbons depend upon:

Mass of the hydrocarbon

Intermolecular forces of interaction

Hydrocarbons of greater mass or greater number of carbons have greater molecular mass.

Molecular formula of paraffin is [tex]CH_3(CH2)_{33}CH3[/tex]

Molecular formula of hexadecane is [tex]CH_3(CH2)_{14}CH3[/tex]

Among given hydrocarbons, number of carbon is highest in paraffin and hence has highest boiling point.

Boiling point of paraffin is followed by hexadecane having second highest number of carbon.

Mass of dimethylpropane and pentane are comparable. But boiling point of dimethylpropane is less than pentane. This is because branching decreases intermolecular force of attraction (van der Waal's force) which leads to decrease in boiling point.

No. of carbon in butane is least among given. So its boiling point is lowest.

Hence, Order of hydrocarbons in decreasing order of boiling point:

Paraffin > Hexadecane > Pentane > Dimethylpropane > Butane