SUMMARY
To convert 7 kg of ice at 0°C to steam at 100°C, a total heat of 5,036.5 kcal is required. This calculation involves three stages: heating the ice to 0°C, melting the ice to water, and vaporizing the water to steam. The specific heat of water is 1,000 cal/kg·°C, the heat of fusion is 79,500 cal/kg, and the heat of vaporization is 540,000 cal/kg. The total heat is calculated by summing the heat required for each stage: 700,000 cal for heating, 556,500 cal for fusion, and 3,780,000 cal for vaporization.
PREREQUISITES
- Understanding of thermodynamics principles
- Knowledge of specific heat capacity
- Familiarity with latent heat concepts
- Ability to perform unit conversions between calories and kilocalories
NEXT STEPS
- Study the concept of specific heat and its applications in thermodynamics
- Learn about latent heat of fusion and vaporization in detail
- Explore the calculations involved in phase changes of substances
- Investigate the differences between calories and kilocalories in thermal energy calculations
USEFUL FOR
Students in physics or chemistry, educators teaching thermodynamics, and anyone interested in understanding heat transfer during phase changes of water.