A Hilsch tube or Hilsch - Ranque tube is a short length of insulated pipe, open at one end and capped at the other, with a small opening at the center of the cap. A gas is injected tangentially into the pipe at some point along its length, and even though there are no moving parts, the gas streams leaving at the two ends are observed to be at different temperatures. If air enters such a device at 300 kPa, 40 C, at a rate of 0.100 kg/s and air leaves one end at 100 kPa, 50 C, at a rate of 0.060 kg/s, what is the temperature of the air leaving the other end?