A block made of nickel with a mass of 0.80 kg is heated to 800°C, then dropped into 5.00 kg of water at 10°C. What is the total change in entropy (in J/K) of the block-water system, assuming no energy is lost by heat from this system to the surroundings? The specific heat of nickel is 440 J/(kg · K), and the specific heat of water is 4,186 J/(kg · K)

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A block made of nickel with a mass of 0.80 kg is heated to 800°C, then dropped into 5.00 kg of water at 10°C. What is the total change in entropy (in J/K) of the block-water system, assuming no energy is lost by heat from this system to the surroundings? The specific heat of nickel is 440 J/(kg · K), and the specific heat of water is 4,186 J/(kg · K).

(Hint: note that dQ = mcdT.)

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