# A 62-kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of water at 10°C. Determine the finalequilibrium temperature and the total entropy change for this process. The specific heat of water at 25°C is cp 4.18 kJ/kg-K. Thedensity of water is 997 kg/m. The specific heat of copper at 27°C is cp0.386 kJ/kg-K.WaterСopper90 LThe final equilibrium temperature isК.kJ/KThe total entropy change during this process is

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Step 1

Refer the Table “Properties of common liquids, solids, and foods”, select the specific heat of copper  at temperature of 27 degrree celsius as 0.386 kJ/kg.degree.

Step 2

Write the expression for the total change in internal energy of the system.

Step 3

Calculate the entropy cha...

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