An assemble consisting of two cylindrical portions AB and BC is fixed at the rigid wall at A. Section AB is made of steel (Es = 200 GPa, αs = 12 × 10−6 /°C) and section BC is made of aluminum (Eal = 73 GPa, αal = 23 × 10−6 /°C). If the gap between C and the rigid wall at D is 0.15 mm when the temperature is 10 °C, determine the average normal stress in section BC when the temperature rises to 50°C

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

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?