Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2700 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein.

Question

Paula Poole

Chemistry

14 August, 15:34

Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2700 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein.

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Answers (1)

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Isabell Johnston · Answer 1

The calories per gram of each substance are:

Protein: 4 calories / gram

Carbohydrates: 4 calories / gram

Fat: 9 calories / gram

So, one bar contains:

50 * 4 + 10 * 9 + 40 * 4

450 calories

If she were to eat only these bars, she will need:

2,700 / 450

= 6 nutrition bars for her climb