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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

You are on a diet that calls for eating no more than 1200 Cal/day What is this energy in joules?

Interpretation Introduction

Interpretation: The conversion of energy in joules has to be calculated.

Concept Introduction:

Joule: The joule is related directly to the units used for mechanical energy.

Calorie: The calorie is an older energy unit. It is defined as the energy transferred as heat that is required to raise the temperature of 1g of substance by one degree Celsius.

  1Calorie =4.184joules (J).

Explanation

The energy in joules is calculated as,

  Conversion of units:Given: 1200 Cal/day.Known: 1Calorie =4.184joules (J).Whereas,1200 Cal,1200 Cal×4

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