$8\mathrm{.}192$ A square$-$edged orifice with corner taps and a water manometer are used to meter compressed air. The following data are givent:

Calculate the volume flow rate in the line, expressed in cubic meters per hour.

$\backslash$table$[[$Inside diameter of air line,$150$ mm$],[$Orifice plate diameter,$100$ mm$],[$Upstream pressure,$600$ kPa$],[$Temperature of air,$25C$