Here are the essential concepts you must grasp in order to answer the question correctly.
Calorimetry
Calorimetry is the science of measuring the heat of chemical reactions or physical changes. In this context, it involves using a calorimeter to determine the amount of heat released when a substance, like olive oil, is burned. The temperature change in a known mass of water is used to calculate the energy transferred, which is essential for determining the energy value of the olive oil.
Specific Heat Capacity
Specific heat capacity is the amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius. For water, this value is typically 1 cal/g°C. Understanding this concept is crucial for calculating the heat absorbed by the water in the calorimeter, as it allows us to relate the temperature change to the energy released by the burning olive oil.
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Energy Value Calculation
The energy value of a substance, often expressed in kcal/g, indicates how much energy is released per gram when the substance is combusted. To find this value for the olive oil, the total heat absorbed by the water is calculated and then divided by the mass of the olive oil sample. This calculation provides insight into the caloric content of the olive oil, which is important for nutritional assessments.
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