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linhy
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Homework Statement
a 25 kg block of ice is heated from -10 celsius to 78 celsius. HOw much heat is required.
How much heat is required to melt a 25 kg block of ice and heat it to 78°C?
- Thread starter linhy
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SUMMARY
To calculate the total heat required to melt a 25 kg block of ice and heat it to 78°C, one must consider the specific heat of ice, the heat of fusion, and the specific heat of water. The specific heat of ice is 2.09 J/g°C, the heat of fusion for ice is 334 J/g, and the specific heat of water is 4.18 J/g°C. The total heat can be calculated using the formula: Q = m * c * ΔT for both the heating of ice to 0°C and the heating of water to 78°C, along with the heat required for melting the ice.
PREREQUISITES- Understanding of specific heat capacity
- Knowledge of heat of fusion
- Basic algebra for calculations
- Familiarity with temperature conversion
- Calculate the heat required to raise the temperature of ice from -10°C to 0°C
- Determine the heat required to melt the ice at 0°C
- Calculate the heat required to raise the temperature of water from 0°C to 78°C
- Combine all calculated heats to find the total heat required
Students studying thermodynamics, physics enthusiasts, and anyone working on heat transfer problems in chemistry or engineering.
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