For dinner, Charles had one cup of clam chowder, which contains$16g$ of carbohydrate, $12g$ of fat, and $9g$ of protein. How much energy, in kilocalories and kilojoules, is in the clam chowder? (Round off the answer for each food type to the tens place.)

Given are: $16g$of carbohydrate, $12g$of fat, and $9g$of protein of one cup of clam chowder .

To find the energy in kilocalories and kilojoules in the clam chowder.

The total energy in a bowl of clam chowder is the sum of the energy associated with each gramme of individual component. To get the overall energy, add the energy associated with each individual clam chowder ingredient.

Where energy in per gram is

Carbohydrates$=4\mathrm{kcal}/\mathrm{g}$

Fats$=9kcal/g$

Protein$=4\mathrm{kcal}/\mathrm{g}$

Calculating energy in cup of clam chowder

Carbohydrates energy $=(4\mathrm{kcal}/\mathrm{g})\times \left(16\mathrm{g}\right)$$=64kcal$

Fat energy $=(9\mathrm{kcal}/\mathrm{g})\times \left(12\mathrm{g}\right)$$=108kcal$

Protein energy $=(4\mathrm{kcal}/\mathrm{g})\times \left(9\mathrm{g}\right)$$=36kcal$

Amount of energy in per cup is

$=(64+108+36)\mathrm{kcal}$

role="math" localid="1651771798625" $=208kcal$

Rounding off values$=210kcal.$

The factor conversion is

$1kcal=4.184kJ$

$210\mathrm{kcal}=\left(\frac{210\mathrm{kcal}}{1\mathrm{kcal}}\right)\times 4.184\mathrm{kJ}$

$210kcal=878.64kJ$

Rounding off the value is$880kJ.$