Final answer:
The physical characteristics of triglycerides depend on their structure. Saturated fats and trans fats have the maximum number of hydrogen atoms, while unsaturated fats have double bonded carbon atoms. Unsaturated fats do not pack tightly due to the bent structure caused by cis double bonds, while trans fats can pack tightly and form solid fats.
Step-by-step explanation:
Triglycerides, which contain fatty acids, can be classified as saturated, unsaturated, or trans fats. The physical characteristics of these compounds are determined by their structure. Saturated fats and trans fats have the maximum possible number of hydrogen atoms in their carbon chains, while unsaturated fats have double bonded carbon atoms. Unsaturated fats with cis double bonds have a bent structure that prevents them from packing tightly, keeping them liquid at room temperature. Trans fats, on the other hand, have fatty acids with trans double bonds that are able to pack tightly and form solid fats.