As the air goes through the compressor of a gas turbine engine, it undergoes an increase in pressure such that the pressure ratio at the compressor exit to the compressor inlet is 15 (Note this is aratio and not a difference). What is the ratio of exit to inlet density, given the bulk modulus of air is 101000 N/m2

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.