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A 40-kg iron block initially at 280°C is quenched in an insulated tank that contains 100 kg of water at 18°C. Assuming the water that vaporizes during the process condenses back in the tank, determine the total entropy change during this process. The specific heat of water at 25°C is cp = 4.18 kJ/kg·K. The specific heat of iron at room temperature is cp = 0.45 kJ/kg·K.
The total entropy change during this process is
?
kJ/K.
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A 40-kg iron block initially at 280°C is quenched in an insulated tank that contains 100 kg of water...
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