Make an exact control volume analysis of the blowdown process in Fig. P9.37, assuming an insulated tank with negligible kinetic and potential energy, Assume critical flow at the exit and show that both po and to decrease during blowdown. Set up first-order differential equations for po (t) and To (t) and reduce and solve as far as you can.

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Insulated tank 石(,) Volume V Measurements of tank pressure and temperature