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Suppose 1.16 kg of water at 11.6 ◦C is mixed with 1.7 kg of water at...

Suppose 1.16 kg of water at 11.6 ◦C is mixed with 1.7 kg of water at 81◦C. After equilibrium is reached, the mixture has an uniform temperature of 52.8517◦C. What is the change in entropy of the system? The specific heat of water is 4186 J/kg · K. Answer in units of J/K.

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