Finding equilibrium between two blocks In this problem we consider heat transfer in the situation where the volume is constant, but energy can be transferred between two blocks. A block of aluminum is heated to ¹⁰⁰ᵒC by placing it in boiling water, and placed in contact with a block of gold, which is at room temperature of ²⁰ᵒ C. Assume that their volumes do not change, but heat energy can only flow between the two blocks and not out to the environment. 1.1 Equilibrium condition What is the relationship between the final equilibrium temperatures of the blocks? Write down a formula and give an explanation. 1.2 In equilibrium?