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Question

An ice cream has a marked value of 700kcal. How many kilowatt-hour of energy will it deliver to the body as it is digested


A

0.81kwh

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B

0.90kwh

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C

1.11kwh

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D

0.71kwh

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Solution

The correct option is A

0.81kwh


Step1: Given data.

Amount of energy delivered by given ice cream to the body =700kcal

Step2 Finding kilowatt-hour of energy deliver to the body.

We know that,

1kcal=103Calorie=4200J=42003.6×106kWh

Now,

According to the question:

700kcal=700×42003.6×106kwh

=0.81kwh

Hence, option A is correct.


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