A 50-lb iron casting, initially at 7008F, is quenched in a
Chapter 6, Problem 6.60(choose chapter or problem)
A 50-lb iron casting, initially at 700\(^{\circ}\)F, is quenched in a tank filled with 2121 lb of oil, initially at 80\(^{\circ}\)F. The iron casting and oil can be modeled as incompressible with specific heats 0.10 Btu/lb \(\cdot \) \(^{\circ}\)R, and 0.45 Btu/lb \(\cdot \) \(^{\circ}\)R, respectively. For the iron casting and oil as the system, determine (a) the final equilibrium temperature, in \(^{\circ}\)F, and (b) the amount of entropy produced within the tank, in Btu/\(^{\circ}\)R. Ignore heat transfer between the system and its surroundings.
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