Chapter 11: Thermal Properties of Matter

• Q = mc∆T
• Q = mL (latent heat)
• H = σA(T₁-T₂)/d (conduction)
• Stefan's law: E = σT²

Q1. Find the heat required to raise temperature of 2 kg of water from 20°C to 80°C. (c = 4200 J/kgK)

Solution

Q = mc∆T = 2 × 4200 × 60 = 504000 J = 504 kJ