1. If 100g of liquid water is heated from 2°C to 8°C how much heat energy in calories is applied? 2. If a 100.g ice pack is heated from -8°C to -2°C, how much heat energy does the ice absorb in this process? 3. If a 100.g ice pack is heated from -4°C to liquid water at 2°C how much heat energy do the ice/water absorb in this process?

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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QI= mc;AT
Q2= mH
Q3= mcaterAT
Q4= mH,up
Q5 = mc,eamAT
Heat of fusion for ice/water: H= 333.55J/g or 80 cal/g
Heat of vaporization for water/vapor: Hup= 2257 J/g or 540 cal/g
Heating curve for water: sketch and label
with the water forms
and equations for heating Q1-Q5:
Temp
for
water
Time as constant heat is applied
Q problems when you're applying heat to water. Is it just going up in temperature, or is it going
through a phase change?
1. If 100g of liquid water is heated from 2°C to 8°C how much heat energy in calories is
applied?
2. If a 100.g ice pack is heated from -8°C to -2°C, how much heat energy does the ice
absorb in this process?
3. If a 100.g ice pack is heated from -4°C to liquid water at 2°C how much heat energy does
the ice/water absorb in this process?
Transcribed Image Text:QI= mc;AT Q2= mH Q3= mcaterAT Q4= mH,up Q5 = mc,eamAT Heat of fusion for ice/water: H= 333.55J/g or 80 cal/g Heat of vaporization for water/vapor: Hup= 2257 J/g or 540 cal/g Heating curve for water: sketch and label with the water forms and equations for heating Q1-Q5: Temp for water Time as constant heat is applied Q problems when you're applying heat to water. Is it just going up in temperature, or is it going through a phase change? 1. If 100g of liquid water is heated from 2°C to 8°C how much heat energy in calories is applied? 2. If a 100.g ice pack is heated from -8°C to -2°C, how much heat energy does the ice absorb in this process? 3. If a 100.g ice pack is heated from -4°C to liquid water at 2°C how much heat energy does the ice/water absorb in this process?
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