The iron casting and the water are allowed to come to

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Reference no: EM13612303

An 8-kg iron casting at 550 °C is quenched in a tank containing 0.03 m³ of liquid water initially at a temperature of 20 °C. The iron casting and the water are allowed to come to thermal equilibrium. Assuming that no heat is lost to the surroundings, that the specific heat of the iron casting is constant at a value of 0.45 kJ/(kg-K) and that the water also has a constant specific heat at a value of 4.18 kJ/(kg-K),

(a) Find the mass of the water, in kg.
(b) Find the final temperature, in °C.
(c) Find the change in entropy of the iron casting, in kJ/ K.
(d) Find the change in entropy of the water, in kJ/ K.
(e) Find the total change in entropy, in kJ/ K.
(f) Does this process violate the second law of thermodynamics? If so how? If not why not?

Reference no: EM13612303

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