Engineering Thermodynamics
Compressed air coming out from a punctured football

Becomes cooler
Remains at the same temperature
Becomes hotter
May become hotter or cooler depending upon the humidity of the surrounding air

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Engineering Thermodynamics
According to Avogadro's law, for a given pressure and temperature, each molecule of a gas

Occupies volume inversely proportional to its specific weight
Occupies volume proportional to its specific weight
Occupies same volume
Occupies volume inversely proportional to its molecular weight

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