A container having volume 282.7 cm and total surface area 245 cm is completely filled with...

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A container having volume 282.7 cm³ and total surface area 245 cm² is completely filled with milk whose initial temperature is 25°C. The continually stirred milk container is suddenly exposed to steam bath at 100°C. The overall heat transfer coefficient between steam and milk is 1136 W/m²K. The properties of milk are: Specific heat capacity = 3.9 kJ/kg K Thermal conductivity = 0.54 W/m-K Density = 1030 kg/m³. Neglecting thermal resistance and heat capacity of container walls, the necessary time required in seconds to heat milk up to the temperature of 85°C, will be A container having volume 282.7 cm³ and total surface area 245 cm² is completely filled with milk whose initial temperature is 25°C. The continually stirred milk container is suddenly exposed to steam bath at 100°C. The overall heat transfer coefficient between steam and milk is 1136 W/m²K. The properties of milk are: Specific heat capacity = 3.9 kJ/kg K Thermal conductivity = 0.54 W/m-K Density = 1030 kg/m³. Neglecting thermal resistance and heat capacity of container walls, the necessary time required in seconds to heat milk up to the temperature of 85°C, will be

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