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Problem: If you eat a piece of lasagna that contains 510 kcal of energy, how much energy do you consume in joules?A) 6.66 × 103 J B) 1.17 × 106 J C) 8.20 J D) 2.13 × 106 J E) 1.22 × 105 J

FREE Expert Solution

We’re being asked to convert 510 kcal to J


We need the following conversion factors for this:

1 kcal = 103 cal          1 cal = 4.184 J          


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Problem Details

If you eat a piece of lasagna that contains 510 kcal of energy, how much energy do you consume in joules?

A) 6.66 × 103

B) 1.17 × 106

C) 8.20 J 

D) 2.13 × 106

E) 1.22 × 105 J

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