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Calories include a certain total energy, indicated by calories burned. It promotes the execution of pharmacological biological functions.

Mass of olive oil$=0.66g$

Mass of Water$=370g$

Temperature varies from$22.7^{∘}C$to$38.8^{∘}C$

The rise in the temperature of $370g$ of water is${22.7}^{∘}\mathrm{C}$to ${38.8}^{∘}\mathrm{C}$when $0.66g$of olive oil is heated in calorimeter.

The amount of heat involved in the process in kilojoules is calculated as follows:

$Heat=specificheat×mass×∆T$

On substitution of the respective values we have:

$Heat=specificheat×mass×∆T$

$=4.184\frac{\mathrm{g}}{{\mathrm{g}}^{∘}\mathrm{C}}×370\mathrm{g}×\left({38.8}^{∘}\mathrm{C}−22{.}^{∘}\mathrm{C}\right)$

$=24,924J$

$=24.9KJ$

Thus, the heat added to burn the olive oil is $24.9KJ$, thus, the energy value of the olive oil is calculate as:

Energy value

$$\begin{gathered} =\frac{24.9KJ}{0.660g} \\ =37.9KJ/g \end{gathered}$$

The energy value of the olive oil is $37.8KJ/g$

The amount of heat consume in kcal is calculate as follows:

$Heatspecific=heat×mass$

$=1.00\frac{\text{cal}}{{\mathrm{g}}^{∘}\mathrm{C}}×370\mathrm{g}×\left({38.8}^{∘}\mathrm{C}−{22.7}^{∘}\mathrm{C}\right)$

$=5,957cal$

$=5.9Kcal$

Thus, the heat added to burn the olive oil is $5.9Kcal$, thus, the energy value of the olive oil is calculated as :

Energy value

$$\begin{gathered} =\frac{5.9Kcal}{0.660g} \\ =9.03Kcal/g \end{gathered}$$

The energy value of the olive oil is $9.03Kcal/g$