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

Question 45

Multiple Choice

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


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

Correct Answer:

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