Physics

Problem

2.0\,\text{kg}

copper block is cooled from

400\,\text{K}

300\,\text{K}

by immersing it in a very large water reservoir maintained at

300\,\text{K}

. The specific heat capacity of copper is

390\,\text{J\,kg}^{-1}\text{K}^{-1}

. Calculate: (i) the entropy change of the copper block, (ii) the entropy change of the reservoir, (iii) the net entropy change of the universe for this process.

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