1. Define thermal diffusivity. Consider solids A and B being at the same temperature. However, solid

1. Define thermal diffusivity. Consider solids A and B being
at the same temperature. However, solid A hasa higher thermal diffusivity than
solid B. Which is more effective in transferring than in storing energy?

2. Define thermal resistance. One side of a plate is warmer
than the other side. Is thermal resistance in this plate inversely related to
the thickness of the plate?