How Do You Calculate the Final Temperature of a Mixture of Ice and Hot Water?

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SUMMARY

The final temperature of a mixture of 20.0 g of ice at -10.0 degrees Celsius and 100.0 g of water at 80.0 degrees Celsius is calculated to be 52.4 degrees Celsius, assuming no heat loss to the surroundings. The relevant equations include q=mcΔT for heat transfer and the specific heat capacities of H2O in both solid and liquid states, which are 2.08 J/g·°C and 4.18 J/g·°C, respectively. The enthalpy of fusion for ice is 6.01 kJ/mol, which is crucial for calculating the phase change from solid to liquid. The assumption of no heat loss simplifies the calculations by eliminating environmental heat exchange.

PREREQUISITES
  • Understanding of thermodynamics principles, specifically heat transfer.
  • Familiarity with specific heat capacity calculations.
  • Knowledge of phase changes and latent heat concepts.
  • Ability to apply the equation q=mcΔT in practical scenarios.
NEXT STEPS
  • Study the concept of latent heat and its role in phase changes.
  • Learn how to construct and interpret heating curves for substances.
  • Explore advanced thermodynamic equations related to heat transfer in mixtures.
  • Practice similar problems involving mixtures of different states of matter.
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Students in chemistry or physics courses, educators teaching thermodynamics, and anyone interested in understanding heat transfer in mixtures of different states of matter.

Forceofmatter
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1. Homework Statement [/b]

A 20.0 g sample of ice at -10.0 degrees Celsius is mixed with 100.0 g of water at 80.0 degrees Celsius. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H20 (solid) and H20 (liquid) are 2.08 J/g deg. Celsius and 4.18 J/g deg. Celsius respectively, and the enthalpy of fusion of ice is 6.01 kJ/mol.

The answer is 52.4 deg. Celsius. But I am unsure of how to get the answer. Please help asap. No heat loss means no heat (J) is lost to the environment, so you can basically ignore that part of the question.

2. Homework Equations
q=mc delta T
phase change formulas: there are none. Have to use a heating curve to change from solid to liquid and so on.

c=specific heat
q=heat in Joules
T=temperature in this case celsius
 
Last edited:
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How about an equation associated with phase changes?
What's the implication of the assumption of "no heat loss"?
 
Forceofmatter said:
phase change formulas: there are none.

Latent heat.
 

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