A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C. A block of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is- (Given latent heat of fusion of ice = 3.36 × 10° J kg")

A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C. A block of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is- (Given latent heat of fusion of ice = 3.36 × 10° J kg")

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 94P: A firewalker runs across a bed of hot coals without sustaining burns. Calculate the heat transferred...

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Question

A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C. A block
of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal
conductivity of slab is- (Given latent heat of fusion of ice = 3.36 × 10° J kg-')
(1) 1.29 J/m/s°C
(2) 2.05 J/m/s"C
(3) 1.02 J/m/s/"C
(4) 1.24 J/m/s/"C

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