Why do oils have lower freezing point then fats?

Oils generally have lower freezing points than fats due to their chemical structure. Fats are primarily composed of saturated fatty acids, which can pack closely together, leading to a more solid structure at room temperature. In contrast, oils are typically rich in unsaturated fatty acids, which have kinks in their molecular chains that prevent tight packing, resulting in a more fluid state and lower freezing point. This structural difference is key to their varying physical properties.