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Chapter 3: Q.3.25 (page 73)

Convert each of the following energy units:

a. 3500 cal to kcal

b. 415 J to cal

c. 28 cal to J

d. 4.5 KJ to cal

Short Answer

Expert verified

a.3.5kcal

b.99.2cal

c.117.2J

d.1075.5cal

Step by step solution

01

introduction

A calorie is a unit of energy. In sustenance, calories allude to the energy individuals get from the food and drink they polish off, and the energy they use in active work.

02

explanation

a. we know, 1kcal=1000cal

then, 3500cal=35001000=3.5kcal

b. we know, 1cal=4.184J

then, 415J=4154.184=99.2cal

c. we know, 1cal=4.184J

then, 28cal=28脳4.184=117.2J

d. we know, 1kcal=4.184kJ

then,4.54.184脳1000=1075.5cal

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Calculate the kilocalories for each of the following:

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