An aluminum block weighing 34 kg initially at 140°C is brought into contact with a block of iron weighing 48 kg at 60°C in an insulated enclosure. Determine the final equilibrium temperature and the total entropy change for this process. The specific heat of aluminum at 400 K is cp = 0.949 kJ/kg·K. The specific heat of iron at room temperature is cp = 0.45 kJ/kg·K. The final equilibrium temperature is _____ K. The total entropy change for this process is _______  kJ/K.

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A: T1=300 Kno. of mole, n=3V1=0.06 m3V2=0.01 m3W=850 J

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A:

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.