Question

Why does an oil slick form on the surface of the occan after a spill? (1) Arenes, the chief constituents of petroleum are insoluble and have higher density than water (2) IIctcrocycles, the chief constituents of petrolcum are insoluble and have a lower density than water (3) Mlkanes, the chicf constituents of petrolcum are insolublc and have a lower density than watcr (4) None of the above

Name: Problem 3, Chapter 17: Objective Chemistry for Engineering and Medical Entrance Examinations
Uploaded: 2022-01-16T17:19:13-08:00
Duration: 1 min 11 s
Channel: John Nicolle
Description: Why does an oil slick form on the surface of the occan after a spill? (1) Arenes, the chief constituents of petroleum are insoluble and have higher density than water (2) IIctcrocycles, the chief constituents of petrolcum are insoluble and have a lower density than water (3) Mlkanes, the chicf constituents of petrolcum are insolublc and have a lower density than watcr (4) None of the above

   Why does an oil slick form on the surface of the occan after a spill?
(1) Arenes, the chief constituents of petroleum are insoluble and have higher density than water
(2) IIctcrocycles, the chief constituents of petrolcum are insoluble and have a lower density than water
(3) Mlkanes, the chicf constituents of petrolcum are insolublc and have a lower density than watcr
(4) None of the above

Objective Chemistry for Engineering and Medical Entrance Examinations

K Rama Rao 1st Edition

Chapter 17, Problem 3

Instant Answer

Solved by Expert John Nicolle

01/16/2022

Step 1

The options given are Arenes, Heterocycles, and Alkanes. Show more…

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Why does an oil slick form on the surface of the occan after a spill? (1) Arenes, the chief constituents of petroleum are insoluble and have higher density than water (2) IIctcrocycles, the chief constituents of petrolcum are insoluble and have a lower density than water (3) Mlkanes, the chicf constituents of petrolcum are insolublc and have a lower density than watcr (4) None of the above

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Key Concepts

Density Differences

The density of a substance determines whether it will sink or float when placed in another medium. Oil typically has a lower density than water, which is why, after a spill, it rises to the surface rather than dispersing through the water column.

Immiscibility

Immiscibility refers to the inability of two substances to mix and form a uniform solution. Oil does not mix with water because of their molecular interactions, causing it to remain as a separate layer on the surface.

Hydrocarbon Composition

Petroleum is largely composed of hydrocarbons, especially alkanes. These compounds are generally insoluble in water and have lower densities compared to water, characteristics that contribute to the formation of oil slicks on the ocean's surface after a spill.

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