K.C.S.E Physics Q & A - MODEL 2006PP1QN08

K.C.S.E Physics Q & A - MODEL 2006PP1QN08

Beaker A contains 200g of water at 0⁰ C while beaker B contains 200g of a mixture of ice and water at 0⁰C. Two identical metal blocks are removed from a hot furnace. One block is dropped into beaker A while the other is dropped into beaker B at the same time.
Explain why more water evaporates from beaker A than from beaker B

answer

• . In B some of the heat is used up in melting the ice, while in A all the heat goes to raise the temperature of the water to reach boiling point