A 4060 Kg Copper Bar Is Put into a Smelter for for Melting.The

question 34

Multiple Choice

A 406.0 kg copper bar is put into a smelter for melting.The initial temperature of the copper is 300.0 K.How much heat 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 ,and its melting point is 1357 K.)

• A) 2.49 × 10⁵ _kJ
• B) 1.66 × 10¹¹ _kJ
• C) 1.66 × 10⁸ _kJ
• D) 2.96 × 10⁵ _kJ

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Definitions:

Income Effect

That part of an increase (decrease) in amount consumed that is the result of the consumer’s real income being expanded (contracted) by a reduction (rise) in the price of a good.

Candy Bars

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A market condition where the quantity demanded or supplied does not change despite changes in price.