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20 April, 06:50

A banana split contains 1.12 million calories. What is the energy value in kilojoules?

a. 1.12 kJ

b. 4.686 x 10^3 kJ

c. 4686 kJ

d. 2.68 x 10^5 kJ

e. 268 kJ

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Answers (1)
  1. 20 April, 07:00
    0
    Option c. 4686 kJ

    Actually b and c, are the same.

    Explanation:

    This question requires a conversion of units:

    1.12 millon calories = 1.12*10⁶ cal

    1 cal = 4.187 J → 1 cal = 4.18*10⁻³ kJ

    To make the conversion = 1.12*10⁶ cal. 4.18*10⁻³ kJ / 1 cal = 4689.4 kJ

    ≅ 4686 kJ
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