Using Excel, create a table that shows the relationship between the units of pressure in Pa and psi in the range of 10 kPa to 100 kPa. Use increments of 5 kPa.

A large cylindrical tank contains 0.750 m3 of nitrogen gas at 27°C and 50×103 Pa. The tank has a piston that allows the volume to be changed. What will be the pressure if the volume is decreased to 0.410 m3 and the temperature is increased to 157°C? Clearly state the formulae you’re using and what your letters/symbols mean.

Air flows at 210 m/s through the pipe. The temperature is 400 K and the absolute stagnation pressure is 280 kPa. Assume isentropic flow. For air R = 286.9 J/[kg - K] and k=1.40. (Figure 1) Figure 0.3 m

Pls help ASAP. Pls show all work and calculations.