The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal conductivity of 100 J/(s-m-C'). In drawings A, B, and C, heat is conducted through the block in three different directions; in each case the temperature of the warmer surface is 21 C and that of the cooler surface is 12 °C Determine the heat that flows in 8 s for each case. The figure shows a block on top whose base has the dimensions of 3L subscript 0 by 2 L subscript 0 and its height is L subscript 0. In drawing A, heat is conducted through the block from the left face to the right face. In drawing B, heat is conducted through the block from the back face to the front face. In drawing C, heat is conducted through the block from the bottom face to the top face.

The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal conductivity of 100 J/(s-m-C'). In drawings A, B, and C, heat is conducted through the block in three different directions; in each case the temperature of the warmer surface is 21 C and that of the cooler surface is 12 °C Determine the heat that flows in 8 s for each case. The figure shows a block on top whose base has the dimensions of 3L subscript 0 by 2 L subscript 0 and its height is L subscript 0. In drawing A, heat is conducted through the block from the left face to the right face. In drawing B, heat is conducted through the block from the back face to the front face. In drawing C, heat is conducted through the block from the bottom face to the top face.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 71PQ

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