A large activation energy is required to break the double bonds of unsaturated hydrocarbons.
<h3>What are Unsaturated hydrocarbons ?</h3>
Unsaturated hydrocarbons are defined as the hydrocarbons in which double or triple bonds are present between two adjacent carbon atoms. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is CnH2n and CnH2n-2
In unsaturated hydrocarbons, more number of bonds are formed, thus the bond strength of the bonds formed will be more because the orbitals come closer to each other.
As, bond strength of unsaturated hydrocarbons are more. So, more energy will be required to break the bond between them.
The pressure should be low as low pressure can melt the crystals easier way
According to Gay lussac's law pressure is directly proportional to temperature so temperature should be also low as it's general any thing need to be cooled down inorder to get crystallised
Now for amount of dissolved solids the solution should be super saturated like magma .It denotes that the particles present as solute must be greater than the solubility.
Cooling time also should be long inorder to give time to crystallization
