Question: During processing in a steel mill, a 750-lb steel casting at 800F is quenched by plunging it into a 500-gal oil bath, which is initially

During processing in a steel mill, a 750-lb steel casting at 800°F is quenched by plunging it into a 500-gal oil bath, which is initially at a temperature of 100°F. After the casting cools and the oil bath warms, what is the final temperature of the two? The weight per unit volume of the oil is 7.5 lb/gal.

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