Carbon dioxide gas enters a pipe at 3 mpa and 500 k at a rate of 2 kg/s. co2 is cooled at constant pressure as it flows in the pipe, and the temperature of the co2 drops to 450 k at the exit. determine the volume flow rate and the density of carbon dioxide at the inlet and the volume flow rate at the exit of the pipe using (a) the ideal-gas equation and (b) the generalized compressibility chart. also, determine (c) the error involved in the first case.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.