Olive oil usually contain 13% of palmitic acid, 1.5% stearic acid, 70% of oleic acid, 0.5% of palmitoleic acid and 15% linoleic acid. And the melting point of olive oil is measured to be at - 6 C....

Extracted text: Olive oil usually contain 13% of palmitic acid, 1.5% stearic acid, 70% of oleic acid, 0.5% of palmitoleic acid and 15% linoleic acid. And the melting point of olive oil is measured to be at - 6 C. While the melting point of candle wax, which usually the mixture of higher alkanes and stearic acid is above 40 C. Please explain this phenomenon.