posted by bea on .
If you used the alcohol burner to heat the water and all of the heat from the burning of the alcohol went into heating the water, how many grams of alcohol will you burn to do that heating? (Remember, for every 7,000 calories needed, it will use up a gram of alcohol.)
You've posted only part of the question.
? alcohol = 1 g alcohol x (calories needed/7,000)