Gaseous methane is compressed polytropically by a piston from 250C and 0.80 bar to a pressure of 5.0 bar. Assuming an index of compression of 1.2, calculate the change of entropy and work done, per unit mass of the gas. The relative molecular mass of methane is 16 and = 1.30.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery