A rod made of nickel with a mass of 0.80 kg is heated to 850°C, then...

A rod made of nickel with a mass of 0.80 kg is heated to 850°C, then dropped into 7.00 kg of water at 11°C. What is the total change in entropy (in J/K) of the rod-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.)

Expert Solution

genius_generous answered 2 years ago

A block made of copper with a mass of 0.90 kg is heated to 800°C, then...

A block made of copper with a mass of 0.90 kg is heated to 800°C, then dropped into 5.00 kg of water at 11°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 copper is 387 J/(kg · K), and the specific heat of water is 4,186 J/(kg · K). (Hint: note that dQ = mcdT.)

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