K.C.S.E Physics Q & A - MODEL 2001PP1QN19

K.C.S.E Physics Q & A - MODEL 2001PP1QN19

​Fig 12 shows tow identical containers A and B into which a copper rod is fitted. The containers are well lagged.

​The liquids in the containers were initially at the same temperature if the heat is a applied continuously at the position shown, state with reason for the container through which the loss of heat is likely to be higher.

answer

• Heat loss will be higher in A Methylated spirit will boil faster / evaporates / more volatile causing loss of heat through latent heat of vaporization.