The dietary energy requirement for an adult is 2000 kcal per day. This is equivalent to ________.

Question

Quizplus · Accepted Answer

The conversion from calories to joules is based on the fact that 1 calorie is equivalent to approximately 4.184 joules. Therefore, 2000 kcal (which is 2,000,000 calories, since 1 kcal = 1000 calories) is equivalent to 2,000,000 calories * 4.184 joules/calorie = 8.368 × 10^6 joules, or 8.37 × 10^6 joules when rounded, which is the same as 8.37 × 10^6 kJ (since 1 joule = 1 × 10^-3 kJ).

The Dietary Energy Requirement for an Adult Is 2000 Kcal