Answered: What is the heat capacity of 6.18 mol…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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What is the heat capacity of 6.18 mol of liquid water?

______________J/ ^oC

(c) How many kJ of heat are needed to raise the temperature of 7.26 kg of water from 44.3 ^oC to 67.0 ^oC?

___________ kJ

Expert Solution

Step 1

1) Given moles of water = 6.18 mol

Molar mass of water = 18.0 g/mol

mass of water = moles $\times$ molar mass = (6.18 mol ) $\times$ (18.0 g/mol) = 111.24 g

specific heat of water for 1 g = 4.184 J/C

specific heat of water for 111.24 g = $(111.24 g) \times [(4.184 J / C) / (1 g)]$ = 465.43 J/C

Ans : 465.4 J/C

given mass of water = 7.26 kg = 7260 g (1 kg = 1000 g )

Initial temperature = 44.3 C

final temperature = 67.0 C

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