English, asked by Anonymous, 10 months ago

a thermocol ice box is a cheap and efficient method for storing small quantities of good food in summer in particular a cubical ice cube of size 30 cm thickness of 5.0 CM if 4.0 kg of ice is put in the box estimate the amount of ice remaining after 6 hour the outside temperature is 45 degree Celsius and coefficient of thermal conductivity of thermocol is 0.01 jsm ke

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Answered by Anonymous

given each side of a cubical ice box = 30 cm

area of 6 faces of box = 6× 30 × 30 cm^2

A= 5400 × 10^-4 m^2

thickness of the box = 5.0cm = 5.0 × 10-2

mass of ice = 4.0 kg

time = 6h = 6 × 60 × 60s

difference in temperature = thita 1 -thita 2

= 45°-0=45°C

Answered by vidhimpandya111

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