Calculate the total enthalpy in kJ of a 0.749 g sample of steam at 100oC going through various phase change steps to become ice at 0oC. Molar mass for H2O is 18.015 g/mol. Round your answer to 2 decimal places.

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...
icon
Related questions
Question

Calculate the total enthalpy in kJ of a 0.749 g sample of steam at 100oC going through various phase change steps to become ice at 0oC. Molar mass for H2O is 18.015 g/mol.

Round your answer to 2 decimal places.

+200
Heat liberated
5
+150
4 Boiling
+100
STEAM
(100 –200°C)
3
LIQUID WATER (0 –100°C)
+50
Melting
2
1
ICE (-50 – 0°C)
Heat absorbed
- 50
200
400
600
800
1000
1200
1400
1600
Heat (kJ)
Temperature (°C)
Transcribed Image Text:+200 Heat liberated 5 +150 4 Boiling +100 STEAM (100 –200°C) 3 LIQUID WATER (0 –100°C) +50 Melting 2 1 ICE (-50 – 0°C) Heat absorbed - 50 200 400 600 800 1000 1200 1400 1600 Heat (kJ) Temperature (°C)
Use the following data for your calculations:
Table 1 9.2
...
Specific heat and molar heat capacities for some common substances
Molar Heat Capacity, C,
Specific Heat, c
(J g ' K ')
(J mol ' K ')
Substance
Al(s)
0.900
24.3
Cu(s)
0.385
24.5
H,O(s)
2.09
37.7
H,O(€)
4.18
75.3
H,O(g)
2.03
36.4
Table - 9.3
Standard molar enthalpies and temperatures for phase changes of water
Phase
Change
Fusion
Freezing
Vaporization
Condensation
Transition
0°C
0°C
100°C
100°C
Temperature
AH (J/mol)
ΔΗ.
6009.5
ΔΗ
AHup
4.07 × 10*
free
cond
-6009.5
-4.07 × 10*
Transcribed Image Text:Use the following data for your calculations: Table 1 9.2 ... Specific heat and molar heat capacities for some common substances Molar Heat Capacity, C, Specific Heat, c (J g ' K ') (J mol ' K ') Substance Al(s) 0.900 24.3 Cu(s) 0.385 24.5 H,O(s) 2.09 37.7 H,O(€) 4.18 75.3 H,O(g) 2.03 36.4 Table - 9.3 Standard molar enthalpies and temperatures for phase changes of water Phase Change Fusion Freezing Vaporization Condensation Transition 0°C 0°C 100°C 100°C Temperature AH (J/mol) ΔΗ. 6009.5 ΔΗ AHup 4.07 × 10* free cond -6009.5 -4.07 × 10*
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Matter
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY