Question
A 40-kg steel casting (CP = 0.5 kJ kg-1 K-1) at 450C is quenched in 150 kg of oil (CP = 2.5 kJ kg-1 K-1)
A 40-kg steel casting (CP = 0.5 kJ kg-1 K-1) at 450C is quenched in 150 kg of oil (CP = 2.5 kJ kg-1 K-1) at 25C. If there are no heat losses, what is the change in entropy of (a) the casting, (b) the oil, and (c) both together?
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Introduction To Chemical Engineering Thermodynamics
Authors: J.M. Smith, Hendrick Van Ness, Michael Abbott, Mark Swihart
9th Edition
1260721477, 978-1260721478
