3. 5 kmol of Propane gas initially at 373.15 K (100 °C) and 1 bar is compressed to final state of 423.15 K (150 °C) and 10 bar. Estimate: a. Z, HR , UR , SR , GR at the initial state and final state using virial equation sate truncated into two terms and generalized correlation to determined B. b. Hig and Sig c. H, S, U, and G for the prescribed change of state. 4

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

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.

The higher the astm grain size number, the finer the gran is. a)-true b)-false