A copper rod connects two insulated beakers that contain liquids. The temperature of the liquid in Beaker A is 85°C and the temperature in Beaker B is 15°C. Over the next 60 seconds, what will occur?

Explanation:

Over the next 60 seconds, the water in the beaker will try to attain thermal equilibrium by bringing the temperature in both beaker to the same level.

Heat generally moves over a gradient from a place of higher temperature to one with lower temperature. The copper rod is a metallic conductor. Heat will flow from the beaker at 85°C to the beaker at 15°CDuring the passage of time, the liquids in both beaker will reach thermal equilibrium and the temperature will be the same.

They can measure  the amount of energy gained or lost