The experiment described gives us an approximate idea of energy value of foods. However, the number of joules calculated is not very accurate.
a) Why do you think the result is not very accurate?
Give three reasons.
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The amount of grams of each energy source (fat, carbohydrate, and protein) and the amount of energy per gram of each energy source is given on the label. Multiply the grams by the Energy per gram to obtain the Energy.
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