Physics

Physics

Problem

A 600 K600\,\text{K} metal block transfers 150 J150\,\text{J} of thermal energy to an identical block at 300 K300\,\text{K}. The temperature of each block stays essentially constant during the transfer. Which set correctly lists the signs of the entropy changes of the hot block, the cold block, and the two–block system, respectively? a) (negative,  positive,  0)(\text{negative},\;\text{positive},\;0) b) (positive,  negative,  positive)(\text{positive},\;\text{negative},\;\text{positive}) c) (negative,  positive,  positive)(\text{negative},\;\text{positive},\;\text{positive}) d) (negative,  positive,  negative)(\text{negative},\;\text{positive},\;\text{negative})

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