Alkanes (both alkanes and cycloalkanes ) are virtually insoluble in water but dissolve in organic solvent however liquid are good solvent for many other non ionic organic compound give reason
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When a molecular compound or a substance is dissolved in water, the intermolecular forces that exist in the substance in between the atoms should be broken. However, Vanderwaal's dispersion forces exist for the alkanes and cycloalkanes.
Also, for the substance or the compound to fit in the water molecules, the intermolecular forces in between the water molecules, which are mainly the hydrogen bonds should be broken.
This needs energy which will be more than the energy required to break the weaker Vanderwaal's forces. So, if the energy is sufficient enough to break the hydrogen bonds of the water molecules, then the substance molecules will fit in between the water molecules, which virtually shows that is dissolved in water. However, the weak Vanderwaal's forces of the alkanes do not release so much energy to break these Hydrogen attractions. So, they do not fit in between the water molecules, which means that the alkanes do not dissolve in water.
Also, for the substance or the compound to fit in the water molecules, the intermolecular forces in between the water molecules, which are mainly the hydrogen bonds should be broken.
This needs energy which will be more than the energy required to break the weaker Vanderwaal's forces. So, if the energy is sufficient enough to break the hydrogen bonds of the water molecules, then the substance molecules will fit in between the water molecules, which virtually shows that is dissolved in water. However, the weak Vanderwaal's forces of the alkanes do not release so much energy to break these Hydrogen attractions. So, they do not fit in between the water molecules, which means that the alkanes do not dissolve in water.
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