A Silver Bar of Length 30 Cm and Cross-Sectional Area $\degree$

question 48

Multiple Choice

A silver bar of length 30 cm and cross-sectional area 2.0 cm² is used to transfer heat from a 100 $\degree$ C reservoir to a 0 $\degree$ C block of ice. How much ice is melted per second? (For silver, k = 427 W / m · $\degree$ C. For ice, L_f = 334,000 J/kg.)

• A) 4.2 g/s
• B) 0.085 g/s
• C) 0.80 g/s
• D) 0.043 g/s

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