One Kilogram of Chilled Water (0°C) Is Placed in a Freezer

question 55

Multiple Choice

One kilogram of chilled water (0°C) is placed in a freezer which is kept at 0°F (−18°C) . Approximately how much electric energy (in kilocalories) is needed just to freeze the water if the room temperature is maintained at 75°F (24°C) ? (L_ice = 333 J/g; c_ice = 209 J/g⋅°C.)

• A) 11
• B) 15
• C) 16
• D) 13
• E) 33

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Definitions:

Situational Leadership

A leadership theory that proposes the best course of action depends on various situational factors.

Trait Theory

A theory of personality that focuses on the identification and measurement of specific characteristics or traits that influence individual behavior and attitudes.

Group Leadership

The practice of guiding a group towards achieving its goals, often involving directing and motivating members.

Dysfunctional Group

A group that has impaired or abnormal functioning, often characterized by conflict, miscommunication, and lack of cooperation.