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The trans fatty acid has a higher melting point. The trans isomer is straighter in shape and this allows the molecules to be packed closer together. The molecules are hence held together by greater Van der Waal's force.

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Q: Do trans or cis fatty acids have a higher melting point?
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Why is beef fat a solid at room temperature?

This is because it contains more saturated fatty acids then unsaturated fatty acids. Saturated fatty acids have a higher melting point then unsaturated fatty acids.


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