Ice Melting

  • Thread starter cstout
  • Start date
  • #1
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Homework Statement


Ice at 0.0°C is mixed with 8 × 102 mL of water at 28°C. How much ice must melt to lower the water temperature to 0.0°C?


Homework Equations



Q = mc(delta)T

The Attempt at a Solution



c = 4.184 J/g K
(delta)T = -28C
V = 800 mL

I'm not sure what to do since the volume is given and not the mass in this problem.
 

Answers and Replies

  • #2
Hootenanny
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HINT: What is the density of water?
 
  • #3
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ok, but now how do you find how much ice is needed? when density = mass/v and the density of water is 1000kg/m^3 =mass / 800mL
 
  • #4
Hootenanny
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You first need to work out how much energy is required to change the temperature of 816 mL of water by 28oC.
 

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