Two airstreams are mixed steadily and adiabatically the first stream enters at 32°c and 40 percent relative humidity at a rate of 20 m/min, while the second stream enters at 12°c and 90 percent relative humidity at a rate of 25 m/min assuming that the mixing process occurs at a pressure of 1 atm determine a) the specific humidity b) the relative humidity c) the dry-bulb temperature d) the volume flow rate of the mixture.

Agas mixture with a compostion of 55 methane, 30% propane, and 15 butane by volume) is compressed from 1 bar and 25°c to 9bar in a compressor with an isentropic efficiency of 85%. the environment has a temperature of to25 c. determine (a) the exit temperature of the mixture (b) the specific work required to run the compressor (c) the specific entropy generation of the process (d) the specific exergy destruction of the process (e) the second law efficiency of the compressor