In a centrifugal compressor, gas velocity is converted to pressure:

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

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