5kg of air undergoes two processes in a piston- cylinder device. the first process is an isobaric compression process from 1 bar, 600 k to a volume that is 1/2 of the original volume. the second process is a reversible, adiabatic expansion process back to its original volume. the boundary of the piston-cylinder can be taken as the surroundings temperature which is 290 k.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.