Question

A carbohydrate sample weighing 0. 235 g was found to have a fuel value of 3. 84 kj. What is the fuel value of one gram of this carbohydrate, in nutritional calories?

Answer 1

A carbohydrate sample weighing 0. 235 g was found to have a fuel value of 3. 84 Kilojoule. The fuel value of one gram of this carbohydrate, in nutritional calories is 3910 Cal.

What is Carbohydrates ?

• In our daily life we usually uptake Carbohydrates as the primary source of energy. It contains 4 KCal/gm.
• Examples of Carbohydrates are ; Starch, Bread, Rice, Milk, Soft drinks, Corn etc.
• Carbohydrates are fast acting fuel because it breaks down into Sugar and Sugar is the main energy source of our brain and cells.

Now,

0.235 g Carbohydrate = 3.84 kilojoule

                                     = 3840 joule

1g Carbohydrate = 3840/0.235

                            = 16340.43 joule     [1 Cal = 4.1841]

1g carbohydrate = 16340.43/ 4.184 = 3905.5 Cal

Fuel value of 1 g Carbohydrate = 3905.5 Cal

                                                     = 3910 Cal

Thus from the above conclusion we can say that The fuel value of one gram of this carbohydrate, in nutritional calories is 3910 Cal.

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Answer 2

The fuel value of one gram of this carbohydrate, in nutritional calories is 3910 cal.

• A vast variety of both good and bad foods, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, include carbohydrates.
• Because they work quickly and provide energy as soon as they are taken, carbohydrates—which have 4 kcal per gram—are the foods that are used as an energy source the most frequently.

From the given data,

0.235 g carbohydrate = 3.84 kj = 3840 joule

1g carbohydrate = 3840/0.235 = 16340.43 joule

(1 Cal = 4.1841)

1 g carbohydrate = 16340.43/ 4.184 = 3905.5 Cal

fuel value of 1 g carbohydrate = 3905.5 Cal

answer: 3910 Cal

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