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Title: A 771.0-kg copper bar is put into a smelter for melting. The initial temperature of the copper is ... Post by: Chery on Nov 30, 2016 A 771.0-kg copper bar is put into a smelter for melting. The initial temperature of the copper is 300.0 K. How much thermal energy must the smelter produce to completely melt the copper bar? The specific heat for copper is 386 J/kg∙K, the heat of fusion for copper is 205,000 J/kg, and its melting point is 1357 K.
A) 4.73 × 105 kJ B) 3.15 × 1011 kJ C) 3.15 × 108 kJ D) 5.62 × 105 kJ Title: Re: A 771.0-kg copper bar is put into a smelter for melting. The initial temperature of the copper ... Post by: lyall on Nov 30, 2016 Content hidden
Title: Re: A 771.0-kg copper bar is put into a smelter for melting. The initial temperature of the copper is ... Post by: Chery on Jan 13, 2017 You're right again!
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