Log out Go to App
Go to App

Learning Materials

Features

Discover

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=28×4.184=117.2J

d. we know, 1kcal=4.184kJ

then,4.54.184×1000=1075.5cal

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Calculate the heat change at 0°. for each of the following. and indicate whether heat was absorbed/released:

a. calories to freeze35gof water

h. joules to freeze275g of water

c. kilocalories to melt140g of ice

d. kilojoules to melt5.00g of ice

Your friend, who has a mass of 70.0kg, has a slice of pizza, a cola soft drink, and ice cream. 3.5

a. Using Table, calculate the total kilocalories for each food type in this meal (round off the kilocalories to the tens place).

b. Determine the total kilocalories for the meal (round off to the tens place).

c. Using Table, determine the number of hours of sitting needed to burn off the kilocalories in this meal.

d. Using Table, determine the number of hours of swimming needed to burn off the kilocalories in this meal.

Calculate the kilocalories for each of the following:

a one stalk of celery that produces125KJwhen burned in a calorimeter

b a waffle that produces870KJ when burned in a calorimeter

Using the energy values for foods (see Table 3.7), determine each of the following (round off the answer for each food type to the tens place):

athe total kilojoules in two tablespoons of crunchy peanut butter that contains 6gof carbohydrate, localid="1653992607206" 16gof fat, and 7gof protein

bthe grams of protein in one cup of soup that has 110kcalwith 9gof carbohydrate and 6gof fat

cthe kilocalories in one can of cola if it has 40.0gof carbohydrates and no fat or protein

dthe total kilocalories for a diet that consists of 68gof carbohydrate, 9gof fat, and 150gof protein

You have a friend who is using a recipe for flan from a Mexican cookbook. You notice that he set your oven temperature at 175°F. What would you advise him to do?
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Analysis

Read Explanation

Chemistry Branches

Read Explanation

Inorganic Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Physical Chemistry

Read Explanation

Nuclear Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free