A Styrofoam box has a surface area of 0.9 m² and a wall thickness of 1.8 cm. The temperature of the inner surface is 6.6°C, and the outside temperature is 24°C. If it takes 7.7 h for 8 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam. Final answer in three decimal places. For water, Lf = 334 000 J/ kg.

A Styrofoam box has a surface area of 0.9 m² and a wall thickness of 1.8 cm. The temperature of the inner surface is 6.6°C, and the outside temperature is 24°C. If it takes 7.7 h for 8 kg of ice to melt in the container, determine the thermal conductivity of the Styrofoam. Final answer in three decimal places. For water, Lf = 334 000 J/ kg.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 58PQ

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