Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 3 - Matter and Energy - Exercises - Cumulative Problems - Page 90: 93

Answer

Therefore the final temperature of the water sample is 48.6$^{\circ}$ C.

Work Step by Step

We will use the equation $q=mc\Delta t$ q = heat transferred m = mass c = specific heat $\Delta t $ = change in temperature plug in the values. $1.7 \times 10^{4}$ = (245) (4.18) ($\Delta t $) ***We multiply 245 times 4.18 and then divide $1.7 \times 10^{4}$ by that answer *** solve using a calculator $ \Delta t = 16.6 ^{\circ} $ Therefore the temperature change is $1.82^{\circ}$ The initial temp is 155 so the final temp= initial temp + $ \Delta t$ = 32+ 16.6 = 48.6 Therefore the final temperature is 48.6$^{\circ}$ C
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