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Physical properties of alkanes?
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Physical properties of alkanes?
Physical Properties of Alkanes
Alkanes contain only carbon and hydrogen atoms. Since there is very little difference between the electronegativities of carbon and hydrogen, alkanes are almost non-polar.
1.Physical State and Odour of Alkanes;
The first four members of straight chain alkanes — methane, ethane, propane and butane are gases. The next thirteen are liquids (C5−C17). Those containing eighteen carbons or more are waxy solids. They are colourless and odourless.
2.Boiling points of Alkanes;
Amongst isomeric alkanes, the boiling point of branched chain alkanes is lower than that of corresponding straight chain alkanes because the surface area of alkanes decreases with branching, and consequently the Van dar waals forces of attraction become weaker.
3.Solubility of Alkanes;
Since alkanes are non-polar in nature, they are insoluble in polar solvents such as water, alcohol etc. They are, however, highly soluble in non-polar solvents such as benzene, ether, carbon tetrachloride etc.
4.Density of Alkanes;
Alkanes are lighter than water.
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Physical properties of alkanes?
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Physical properties of alkanes? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Physical properties of alkanes? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Physical properties of alkanes?.
Physical properties of alkanes? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Physical properties of alkanes? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Physical properties of alkanes?.
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