cylinder contains 0.020 m3 of molecular oxygen at a temperature of 25 C and a pressure of 15 atm. What would be the volume of this gas at a pressure of an atmosphere? A patient breathes this oxygene using a mask has a rate 0.0080 m3/minute at atmospheric pressure. After how long will the cylinder be 'empty' i.e. its pressure will be 1 atm.

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First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.