Question

is this true... the longer the hydrocarbon chain the higher the surface tension?

Answer 1

Following is the - complete Answer -&- Explanation, for the given Question, in......typed format....

Answer:

YES, it is TRUE, the longer the Hydrocarbon chain, the Higher the value of surface tension.

Explanation:

• Step - 1:

We know, the surface tension, of any compound, including hydrocarbons, increase with increasing molecular weights, of the compounds OR substances. Therefore, we can surely say that the surface tension, of compounds is directly proportional with molecular weight, of organic compounds.

We know, the molecules, of hydrocarbons, are actually chains of carbons, and hydrogen atoms.

• Step - 2:

Therefore, since the longer is the hydrocarbon chain, of the molecule of a hydrocarbon, there will be more --- carbon and hydrogen atoms, constituting the molecule, of the hydrocarbon chain. Thus, it implies that the increase in length, of a molecule of hydrocarbon will result in increase of the molecular wight of the hydrocarbon.

Now, since we know ---- for hydrocarbons, the surface tension, is directly proportional with their molecular weight, we can say that, the increase in length, of the hydrocarbon chains, will surely result in increase in surface tension, of the compounds, correspondingly.

Therefore the following statement:

" the longer the hydrocarbon chain, the higher the surface tension" ---- will be completely -- TRUE ...

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