Temperature, °C 10 -10 -20 -30 NaCl 0 Ice + liquid (brine) Liquid (brine) 10 Ice + salt 20 Salt + liquid (brine) 30 50 40 30 20 10 0 -10 -20 Temperature, °F

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Given the H2O – NaCl phase diagram below, answer the three questions:

  1. Using the diagram, briefly explain how spreading salt on ice causes the ice to melt. Show numerical examples in your discussion.
  2. At a salt composition of 10%, what is the temperature at which ice will start melting?
  3. What is the eutectic temperature of the ice and salt formation?
Temperature, °C
10
-10
-20
-30
NaCl 0
H₂O 100
Ice
+
liquid
(brine)
Liquid
(brine)
10
90
Ice + salt
30
70
Composition, weight %
Copyright ©2017 Pearson Education. All Rights Reserved
Salt
+
liquid
(brine)
20
80
50
40
30
20
10
0
-10
-20
Temperature, °F
Transcribed Image Text:Temperature, °C 10 -10 -20 -30 NaCl 0 H₂O 100 Ice + liquid (brine) Liquid (brine) 10 90 Ice + salt 30 70 Composition, weight % Copyright ©2017 Pearson Education. All Rights Reserved Salt + liquid (brine) 20 80 50 40 30 20 10 0 -10 -20 Temperature, °F
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