Consider an insulated container containing 1.62-kg ice at -17°c. Inside the container, there is a spherical object with radius 32 cm and at a certain temperature of 16370°c. Calculate the time (in hours) where all the ice has melter. Assume that sphere is a black body. Use the following: pi 3.14 c_water = 4190 J/kgK, c_ice = 2100 J/kgK, Lf 334,000 J/kg, 5.6704€ (-8) W/m2K4. Final answer in TWO decimal places.

Consider an insulated container containing 1.62-kg ice at -17°c. Inside the container, there is a spherical object with radius 32 cm and at a certain temperature of 16370°c. Calculate the time (in hours) where all the ice has melter. Assume that sphere is a black body. Use the following: pi 3.14 c_water = 4190 J/kgK, c_ice = 2100 J/kgK, Lf 334,000 J/kg, 5.6704€ (-8) W/m2K4. Final answer in TWO decimal places.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

Consider an insulated container containing 1.62-kg ice at -17°C. Inside the container, there is a spherical object with radius 32 cm and at a certain temperature of 16370°C.
Calculate the time (in hours) where all the ice has melter. Assume that sphere is a black body.
Use the following:
pi= 3.14
c_water = 4190 J/kgK, c_ice = 2100 J/kgK, Lf = 334,000 J/kg, o = 5.6704e (-8) W/m²K4.
Final answer in TWO decimal places.

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