This document discusses heat transfer through conduction. It defines key terms like heat capacity, specific heat, and latent heat. It explains that heat transfer occurs as higher kinetic energy molecules collide with and transfer energy to lower kinetic energy molecules. The rate of conductive heat transfer depends on the temperature difference, contact area, and thermal conductivity of the materials. An example calculation shows how to determine the temperature at the junction and heat transfer rate when heat is conducted through two layers with different thermal conductivities.