Answer:
Ae/A* = 1.115
Explanation:
Let the reservoir pressure be [tex]p_0[/tex]
Let the exit pressure be [tex]p_e[/tex]
Ratio of reservoir pressure and exit pressure
[tex]\frac{p_o}{p_e} = \frac{1}{0.3143}[/tex]
= 3.182
For the above value of pressure ratio
Obtain the area ratio from the isentropic flow table
Ae/A* = 1.115
The value of pressure ratio is Ae/A* = 1.115
