10 50 40 Liquid (brine) 30 Salt 20 Ice - 10 liquid (brine) 10 liquid (brine) -20 - 10 Ice + salt -30 -20 NaCI 10 30 H2O 100 90 70 FIGURE P2.33 Composition, weight % Temperature, °C т Temperature, °F
10 50 40 Liquid (brine) 30 Salt 20 Ice - 10 liquid (brine) 10 liquid (brine) -20 - 10 Ice + salt -30 -20 NaCI 10 30 H2O 100 90 70 FIGURE P2.33 Composition, weight % Temperature, °C т Temperature, °F
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Figure P2.33 shows a portion of the H2O-NaCl phase diagram .a. Using the diagram, briefly explain how spreading salt on ice causes the ice to melt. Show numerical examples in your discussion. b. At a salt composition of 10%, what is the temperature at which ice will start melting? c. What is the eutectic temperature of the ice and salt combination?

Transcribed Image Text:10
50
40
Liquid
(brine)
30
Salt
20
Ice
- 10
liquid
(brine)
10
liquid
(brine)
-20
- 10
Ice + salt
-30
-20
NaCI
10
30
H2O 100
90
70
FIGURE P2.33
Composition, weight %
Temperature, °C
т
Temperature, °F
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