Question

express daily food intake(energy=10^7joules) of a human adults in kilocalories​

Answer 1

Answer;

2381 kilocalories

Explanation:

as we know that 1 calorie = 4.2 joule

so, from 10^7 = 10^7/4.2 =.2381 *10^7calore

for kilocalore divide this by 1000 so we got 2.381 *10^3 kilocalories

Answer 2

Concept:

Multiplying the energy by the conversion ratio will result in a kilojoule to kilocalorie conversion. Kilocalories are created by multiplying kilojoules by 0.239006.

Given:

Energy = 10^7 joules

Find:

We need to convert energy in joules to kilocalories.

Solution:

• In the International System of Units, a joule is a derived unit of energy. It is equivalent to the amount of labour required to move a mass to about one metre in the direction of an applied newton of force.
• An energy unit equivalent to 1000 calories (equal to one large calorie) is called a kilocalorie. It is expressed as 1kcal = 1000 cal
• Joules and kilocalories are related to each other by the equation,
• 1 Joule = 0.000239006 kilocalorie
• Therefore, 10^7 joules will be equivalent to-
• 10^7×0.00023906 = 2,390.6 kcal ≅ 2,400 kcal
• If a person's daily food intake is around 10^7 joules, then in terms of kilocalories it becomes 2,400 kcal.

Thus, the expression of daily food intake (energy=10^7joules) of a human adult in kilocalories​ is 2,390.6 kcal ≅ 2,400 kcal

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