Stability of a Crystal is Reflected in the Magnitude of Its Melti Exercise Chapter 1 the Solid State Chemistry Class
Question 6. ’Stability of a crystal is reflected in the magnitude of its melting points’. Comment. Collect melting points of solid water, ethyl alcohol, diethyl ether and methane from a data book. What can you say about the intermolecular forces between these molecules? Chapter 1: the Solid State Chemistry Class 12 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Stability of a crystal is reflected in the magnitude of its melting points, Collect melting points of solid water, ethyl alcohol, diethyl ether and methane from a data book. What can you say about the intermolecular forces between these molecules is solved by our expert teachers. You can get ncert solutions and notes for class 12 chapter 1 absolutely free. NCERT Solutions for class 12 Chemistry Chapter 1: the Solid State is very essencial for getting good marks in CBSE Board examinations
Question 6. ’Stability of a crystal is reflected in the magnitude of its melting points’. Comment.
Collect melting points of solid water, ethyl alcohol, diethyl ether and methane from a data book. What can you say about the intermolecular forces between these molecules?
Answer:
Melting points of substances
Water = 273K
Ethyl alcohol = 155•7K
Diethyl ether = 156•8K
Methane = 90•5K.
The stability of crystals depends up on the packing of the atoms. if there are strong force of attraction between the constituent particles then greater the stability.
Water – strong intermolecular hydrogen bonding
Ethyl alcohol – strong intermolecular hydrogen bonding.
Diethyl ether – it is a polar molecule so there is dipole –dipole attraction
Methane – is a non–polar molecule so that there is weak van der Waal’s forces (London dispersion forces).
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