Question

Aluminum cans of a liquid baby formula are sterilized with steam in an autoclave before being shipped to wholesale distributors. A batch of the product consists of 500 cans, each of which has a tare (empty) mass of 1:00 102 g and contains 0.750 kg of formula. The cans are loaded into the autoclave at 35°C, and saturated steam at 2 bar is used to displace all the air from the autoclave and bring the cans and their contents to the same temperature as the steam. After the autoclave temperature has stabilized, it is held constant for 15 minutes, which is sufficient to achieve the required degree of sterilization. The steam is then vented, the pressure in the autoclave reduced to 1 atm, and the cans of formula are cooled to ambient temperature before being packaged for shipping. The heat capacities of the cans and formula are 0.91 kJ/(kg°C) and 3.77 kJ/(kg°C), respectively.

          Aluminum cans of a liquid baby formula are sterilized with steam in an autoclave before being shipped to wholesale distributors. A batch of the product consists of 500 cans, each of which has a tare (empty) mass of 1:00  102 g and contains 0.750 kg of formula. The cans are loaded into the autoclave at 35°C, and saturated steam at 2 bar is used to displace all the air from the autoclave and bring the cans and their contents to the same temperature as the steam. After the autoclave temperature has stabilized, it is held constant for 15 minutes, which is sufficient to achieve the required degree of sterilization. The steam is then vented, the pressure in the autoclave reduced to 1 atm, and the cans of formula are cooled to ambient temperature before being packaged for shipping. The heat capacities of the cans and formula are 0.91 kJ/(kg°C) and 3.77 kJ/(kg°C), respectively.

Added by Alvaro M.

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