F.1科學實驗(40分)快....

Add the same volume of kerosene and alcohol to two beakers. Measure the original temperature. Burn the substance. Then put a thermometer immediately to measure the temperature rised. Use cotton wool to fill up the space left between the mouth of the beaker and the thermometer to prevent heat lost. The cotton wool allows the diffusion of oxygen to provide oxygen for the burning. Then compare the temperature rised after all the material inside the beaker is burnt. The higher rise in temperature means the higher efficiency of the fuel.

個個up ying文,好lang明bo........

you can use two same size alcohol lamps as apparatus.
then you pour the same volume of the liquid to be tested
into the alcohol lamp. then add same volume of water in two beakers.
then put them over the alcohol lamp. then light the alcohol lamp.
use a stop watch to count for time, say 10 minutes.
then measure the temperature of water by means of thermometer.
which one has the higher temperature has better energy content.