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 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

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Engineering Thermodynamics
According to Avogadro’s law

The product of the gas constant and the molecular mass of an ideal gas is constant
Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules
All of these
The sum of partial pressure of the mixture of two gases is sum of the two

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