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

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Engineering Thermodynamics
The work ratio of a gas turbine plant is given by

(Isentropic increase in temperature)/(Actual increase in temperature)
(Net work output)/(Work-done by the turbine)
(Net work output)/(Heat supplied)
(Actual temperature drop)/(Isentropic temperature drop)

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