Key Concepts: Heat Conversion

Core Definitions

• Heat (q): Energy transferred between objects due to a temperature difference, measured in joules (J) or calories (cal).
• Joule (J): The SI unit of energy. 1 calorie = 4.184 joules.
• Calorie (cal): The amount of energy needed to raise 1 g of water by 1°C.
• Kilocalorie (kcal): 1 kcal = 1000 cal = 1 food Calorie (Cal).