why does an ice cream appear colder than water at the same temperature?
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3
Ice cream and water are not at same temperature..... It's the environment around them that is at same temperature.
Ice cream is at much lower temperature than water. So when ice cream comes in contact with your body, it extracts more heat due to larger temp difference b/w ice cream & your body as compared to that b/w water & your body.
Hence according to Fourier's law of heat transfer (Q=h*A*(Temp of body - Temp of environment), higher the temp difference more is the heat lost. Thus you feel ice cream to be more colder.
Ice cream is at much lower temperature than water. So when ice cream comes in contact with your body, it extracts more heat due to larger temp difference b/w ice cream & your body as compared to that b/w water & your body.
Hence according to Fourier's law of heat transfer (Q=h*A*(Temp of body - Temp of environment), higher the temp difference more is the heat lost. Thus you feel ice cream to be more colder.
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7
They are at same temperature. The contact of your body depends. Water get warm easily when you touch but ice-cream takes time to melt.
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