Tech A says that the technician is responsible for using properly certified equipment when servicing mobile vehicle A/C Systems. Tech B says that the current fine for not complying with EPA 609 is $37,500 per day per incident. Who is correct ?

10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.