Air enters a converging-diverging nozzle at a stagnation pressure of 2mpa, a stagnation temperature of 400k, and a mach number of 0.5. the flow is accelerated isentropically through the nozzle to a mach number of 4(station x), passes through a normal shock (x to y), and then flows isentropically to the exit. given a nozzlethroat area of 0.05m2 and exit area of 1m2, find the location of the shock (nozzle area).

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference