One Kilogram of Chilled Water at 32°F (0°C) Is Placed

question 50

Multiple Choice

One kilogram of chilled water at 32°F (0°C) is placed in a freezer which is kept at 0°F (−18°C) . Approximately how much electric energy (in kilocalories) is needed to operate the compressor to cool this water to 0°F if the room temperature is maintained at 75°F (24°C) ? (L_ice = 3.33 × 10⁵ J/kg; c_ice = 2.09 × 10³ J/kg⋅°C)

• A) 13
• B) 1.5
• C) 15
• D) 16
• E) 33

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Definitions:

Work In Process

Products that are in the middle of the production process and are not yet completed; represents a component of inventory on the balance sheet.

Finished Goods

Goods that are completed production and are now available for customer acquisition.

Manufacturing Overhead

All indirect costs related to manufacturing, such as maintenance, supervision, and utilities, not directly tied to any specific product unit.

Indirect Materials

Materials used in the production process but not directly traceable to a specific product, such as lubricants and adhesives used in machinery.