Imagine that you place a piece of copper with an initial temperature of 20°C in contact with someliquid water with an initial temperature of 100°C. Assume that the physical system consisting of the copper and the water is thermally isolated from everything else; i.e., they can only exchange energy with each other.
I need to draw an Energy-Interaction Diagram, but to do that, I need to figure out when copper and water reach thermal equilibrium. Unfortunately, this is all the information given, so I don't really know if I should use q=c delta t. Can someone please help me find thermal equilibrium?