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ChemistryIntroductory Chemistry: A Foundation9th Edition

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Chapter 10, Problem 68AP
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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Calculate the amount of energy required (in calories) to heat 145 g of water from 22.3 °C to 75.0 °C.

Interpretation Introduction

Interpretation:

The heat required in calories to raise the temperature of water should be calculated.

Concept Introduction:

The specific heat is defined as the amount of heat per unit mass needed to raise the temperature by one degree Celsius.

It is mathematically represented as follows:

Q=msΔT

Here, Q is heat, m is mass, s is specific heat capacity and ΔT is change in temperature.

Explanation

Given Information:

The mass of water is 145 g, initial temperature is 22.3 ∘C and final temperature is 75.0 ∘C

Calculation:

From table 10.1, the specific heat capacity of water (liquid) is 4.184 J/g ∘C

The heat required can be calculated using the following equation:

Q=msΔT

Or,

Q=ms(T2−T1)

On putting the values,

Q=(145 g)(4.184 J/g ∘C)(75 ∘C−22

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Sect-10.1 P-1CTSect-10.4 P-1CTSect-10.5 P-10.1SCSect-10.5 P-10.2SCSect-10.5 P-10.3SCSect-10.5 P-10.4SCSect-10.6 P-10.5SCSect-10.7 P-1CTSect-10.7 P-10.6SCSect-10.9 P-1CT
Sect-10.10 P-1CTCh-10 P-1ALQCh-10 P-2ALQCh-10 P-3ALQCh-10 P-4ALQCh-10 P-5ALQCh-10 P-6ALQCh-10 P-7ALQCh-10 P-8ALQCh-10 P-9ALQCh-10 P-10ALQCh-10 P-11ALQCh-10 P-12ALQCh-10 P-13ALQCh-10 P-14ALQCh-10 P-15ALQCh-10 P-16ALQCh-10 P-17ALQCh-10 P-18ALQCh-10 P-19ALQCh-10 P-20ALQCh-10 P-1QAPCh-10 P-2QAPCh-10 P-3QAPCh-10 P-4QAPCh-10 P-5QAPCh-10 P-6QAPCh-10 P-7QAPCh-10 P-8QAPCh-10 P-9QAPCh-10 P-10QAPCh-10 P-11QAPCh-10 P-12QAPCh-10 P-13QAPCh-10 P-14QAPCh-10 P-15QAPCh-10 P-16QAPCh-10 P-17QAPCh-10 P-18QAPCh-10 P-19QAPCh-10 P-20QAPCh-10 P-21QAPCh-10 P-22QAPCh-10 P-23QAPCh-10 P-24QAPCh-10 P-25QAPCh-10 P-26QAPCh-10 P-27QAPCh-10 P-28QAPCh-10 P-29QAPCh-10 P-30QAPCh-10 P-31QAPCh-10 P-32QAPCh-10 P-33QAPCh-10 P-34QAPCh-10 P-35QAPCh-10 P-36QAPCh-10 P-37QAPCh-10 P-38QAPCh-10 P-39QAPCh-10 P-40QAPCh-10 P-41QAPCh-10 P-42QAPCh-10 P-43QAPCh-10 P-44QAPCh-10 P-45QAPCh-10 P-46QAPCh-10 P-47QAPCh-10 P-48QAPCh-10 P-49QAPCh-10 P-50QAPCh-10 P-51QAPCh-10 P-52QAPCh-10 P-53QAPCh-10 P-54QAPCh-10 P-55QAPCh-10 P-56QAPCh-10 P-57QAPCh-10 P-58QAPCh-10 P-59QAPCh-10 P-60QAPCh-10 P-61QAPCh-10 P-62QAPCh-10 P-63QAPCh-10 P-64QAPCh-10 P-65APCh-10 P-66APCh-10 P-67APCh-10 P-68APCh-10 P-69APCh-10 P-70APCh-10 P-71APCh-10 P-72APCh-10 P-73APCh-10 P-74APCh-10 P-75APCh-10 P-76APCh-10 P-77APCh-10 P-78APCh-10 P-79APCh-10 P-80APCh-10 P-81APCh-10 P-82APCh-10 P-83APCh-10 P-84APCh-10 P-85CPCh-10 P-86CPCh-10 P-87CPCh-10 P-88CPCh-10 P-89CP

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