1.

Milk and water of equal mass are taken in two similar vessels at room temperature. Both of them are to be heated from the room temperature to a certain higher temperature. Which will take less heat and why?

Answer»

Solution :Let mass of milk = m = mass of WATER
Increase in temperature of milk = t = increase in temperature TRUE of water
Let specific heats of milk and water be `s_(m) and s_(w)`.
Heat absorbed by milk, `H_(m)=ms_(m)t`
Heat absorbed by water, `H_(w)=ms_(w)t`
`because""s_(m) LT s_(w),""H_(m)lt H_(w)`
So, less heat is REQUIRED to warm milk.


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