A typical candy bar contains 281 food Calories,which is 281 kcal.How many kilojoules are contained in one such candy bar?

Name: A typical candy bar contains 281 food Calories,which is 281 kcal.How many kilojoules are contained in one such candy bar?
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Question

Quizplus · Accepted Answer

1 food calorie is equal to 4.184 kilojoules. Therefore, to convert 281 food Calories to kilojoules, we multiply by 4.184:

281 kcal x 4.184 kJ/kcal = 1177.804 kJ

Rounding to two significant figures gives 1.18 x 10^3 kJ, which is answer choice B.

A Typical Candy Bar Contains 281 Food Calories,which Is 281