SUMMARY
The calculation of heat required to raise the temperature of 20 g of water from 15°C to 95°C involves using the specific heat capacity of water, which is 1.0 cal/g°C. The temperature change is 80°C, resulting in a total heat requirement of 2400 calories. The formula Q = mcΔT is applicable when using Joules and kilograms, where 'c' represents the specific heat capacity. This straightforward approach confirms the efficiency of the metric system in thermal calculations.
PREREQUISITES
- Understanding of specific heat capacity
- Basic knowledge of calorimetry
- Familiarity with temperature scales (Celsius)
- Ability to perform unit conversions between calories and Joules
NEXT STEPS
- Study the formula Q = mcΔT in detail
- Learn about calorimetry and its applications in thermal physics
- Explore the conversion between calories and Joules
- Investigate the specific heat capacities of other substances
USEFUL FOR
Students in physics or chemistry, educators teaching thermodynamics, and anyone interested in understanding heat transfer and calorimetry principles.