How Much Heat Must Be Removed to Make 3.1 kg of Shaved Ice at 0°C?

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SUMMARY

The discussion focuses on calculating the heat removal required to convert 3.1 kg of water at 0°C into ice. The enthalpy of formation for ice is essential for this calculation, specifically at standard temperature and pressure (STP). Participants referenced two key resources: the enthalpy of formation website and a site detailing the latent heat of fusion for ice. The latent heat at atmospheric pressure is crucial for determining the total heat removal needed for the process.

PREREQUISITES
  • Understanding of enthalpy of formation for ice
  • Knowledge of latent heat of fusion for ice
  • Familiarity with standard temperature and pressure (STP) conditions
  • Basic principles of thermodynamics
NEXT STEPS
  • Research the enthalpy of fusion for ice using reliable scientific resources
  • Study the calculations for heat transfer in phase changes
  • Explore thermodynamic properties of water and ice at various temperatures
  • Investigate the impact of atmospheric pressure on phase change calculations
USEFUL FOR

Students in chemistry or physics, engineers working with thermal systems, and anyone involved in food preservation or medical transport requiring temperature control.

jmandas
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suppose that 3.1 kg of shaved ice is needed to keep medication cold in a room without a refrigerator. What amount o heat must be removed from the 3.1 kg of water to make ice once it has reached 0 deg C
 
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You need to know the enthalpy of formation for ice. Unless it says at certain temperature and press ure use the formation for STP>
enthalpy of formation website:
http://wine1.sb.fsu.edu/chm1045/notes/Energy/HeatForm/Energy05.htm
another nice site with the enthalpy of fusion of ice on it:
http://www.physchem.co.za/Heat/Latent.htm
 
Last edited by a moderator:
What is the latent heat (at constant pressure,assumed atmospherical pressure,760 Torrs) for icing water/melting ice...?

Daniel.
 

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