Engineering Thermodynamics
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.

Atomization
Combustion
Carbonization
None of these

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

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

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