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(a) Stability of a crystal is reflected in the magnitude of its melting point'. Comment (b)The melting point of some compounds are given below: Water = 273 K, Ethyl alcohol =155.7 K, Diethyl ether =156.8 K, Methane =90.5 K. What can you say about the intermolecular forces between these molecules ?

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :(a) Higher the <a href="https://interviewquestions.tuteehub.com/tag/melting-1093090" style="font-weight:bold;" target="_blank" title="Click to know more about MELTING">MELTING</a> point, greater are the forces holding the constituent particles together and hence greater is the stability<br/> (b) The intermolecular forces in water and ethyl alcohol are mainly the hydrogen bonding Higher melting point of water than alcohol shows that hydrogen bonding in ethyl alcohol molecules is not a strong as in water molecules. <a href="https://interviewquestions.tuteehub.com/tag/diethyl-951375" style="font-weight:bold;" target="_blank" title="Click to know more about DIETHYL">DIETHYL</a> ether is a polar molecule. The intermolecular forces present in them are dipole dipole attraction Methane is a non-polar molecule. The only forces present in them are the weak van <a href="https://interviewquestions.tuteehub.com/tag/der-948864" style="font-weight:bold;" target="_blank" title="Click to know more about DER">DER</a> Waals forces (London dispersion forces)</body></html>


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