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Physical Properties of Fats
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Why does solid fat have a higher melting point than liquid oil?
It contains more saturated fatty acids, allowing tight molecular packing.
Describe what happens when liquid fat is placed on water and name the process.
It spreads uniformly in a thin layer, decreasing surface tension — a process called emulsification.
Spot the error in the picture.
the second and third F.A has no double bond with O
Explain how the saturation of fatty acids affects the hardness of fats.
more saturation the harder
What causes fats to become yellowish and acidic when exposed to air?
Hydrolysis and oxidation of unsaturated fatty acids
Pure glycerides are:
Tasteless, odorless, and colorless
explains why fats float on water?
Their specific gravity is less than 1
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