Question

A box of graham crackers is labeled "120 Calories per serving." Assuming this means: 120 kcal,...

A box of graham crackers is labeled "120 Calories per serving." Assuming this means: 120 kcal,

the energy of a serving of the graham crackers is about

A.

120 J.

B.

4.2 × 10

3

J.

C.

5 × 10

4

J.

D.

5 × 10

5

J.

0 0
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Answer #1

here,

for 120 kcal

as 1 cal = 4.2 J

1 kcal = 4200 J

for 120 kcal

energy = 120 * 4200 J

energy = 5 *10^5 J

the energy is D) 5 *105 J

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