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To determine the amount of energy in different foods and to find out how much this depends on the fat content of the food.
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| Submitted: Fri Nov 07 2003
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Burning Foods Investigation Aim: To determine the amount of energy in different foods and to find out how much this depends on the fat content of the food. Introduction Most foods contain fats, carbohydrates and proteins, usually in a mixture. These are all organic molecules, which contain energy. This investigation looks at the amount of energy in six different foods. Energy values are measured by burning the foods underneath a boiling tube containing a fixed volume of water. The temperature rise in the water can be used to calculate the energy values in the water. Energy released from food (J) =mass of water (G) x temperature rise (°C) x 4.2 If you divide this value by the mass of the food, you get a fair comparison. Equipment> Test tubes> Mounting needle> Retort stand with clamp> Bunsen burner> Thermometer> Water Method> Gather equipment, test tubes, Bunsen burner, foods and retort stand.> Pour exactly 15cm³ of...
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