Engineering Thermodynamics
The door of a running refrigerator inside a room was left open. Which of the following statements is correct?

The temperature of the air in room will remain unaffected
The room will be cooled to the temperature inside the refrigerator
The room will be cooled very slightly
The room will be gradually warmed up

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Engineering Thermodynamics
First law of thermodynamics

Does not enable to determine change in entropy
Provides relationship between heat, work and internal energy
Enables to determine change in internal energy of the system
All of these

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