Two metal blocks each have an initial temperature of 50C. One block has a mass o

Question

Two metal blocks each have an initial temperature of 50C. One block has a mass of 10 kg and is made from copper while the other block has a mass of 5 kg and is made from aluminum. The blocks are then attached to a conducting metal bar (material not important) that has an initial temperature of 50C. Assuming there is no heat loss to the air around the blocks and bar, what statement is true?

Heat will flow from the copper block to the aluminum block

Heat will flow from both blocks

Heat will flow from the aluminum block to the copper block

Heat will not flow

Heat will flow from the copper block to the aluminum block

Heat will flow from both blocks

Heat will flow from the aluminum block to the copper block

Heat will not flow

Explanation / Answer

Initial temperature of blocks and bar is same

So, they are all in thermal equilibrium

So, heat will not flow

Answer: heat will not flow

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