The given diagram represents the velocity triangles at the leading edge (1) and trailing edge (2) at the mean radius of a single stage axial compressor rotor. The stage efficiency of the compressor is 0.8. The stagnation temperature of air entering the stage is $298 \mathrm{~K}$ and the specific heat at constant pressure for air is $1.005 \mathrm{~kJ} / \mathrm{kgK}$. The ratio of specific heats for air is 1.4. Considering actual work in the rotor is equal to the ideal work, the pressure ratio for the stage is equal to ___________(in two decimal points).
The given diagram represents the velocity triangles at the leading edge (1) and trailing edge (2) at the mean radius of a single stage axial compressor rotor. The stage efficiency of the compressor is 0.8. The stagnation temperature of air entering the stage is $298 \mathrm{~K}$ and the specific heat at constant pressure for air is $1.005 \mathrm{~kJ} / \mathrm{kgK}$. The ratio of specific heats for air is 1.4. Considering actual work in the rotor is equal to the ideal work, the pressure ratio for the stage is equal to ___________(in two decimal points).