A supply of steam at 14.7 lbf/in. 2, 320 F is needed in a hospital for cleaning purposes at a rate of 30 lbm/s, a supply of steam at 20 lbf/in.2, 500 F is available from a boiler and tap water at 14.7 lbf/in.2, 60 F is also available. The two sources are then mixed in an SSSF mixing chamber to generate the desired state as output. Determine the rate of irreversibility of the mixing process.