Results from the test studying the propagation of supersonic pulsations in molecular medium. Top panel: comparison of density (in code units) for ideal EoS (black line) and H/He EoS (red line) on a log scale at time t = 192 yr. Bottom panels: comparison of zoomed up quantities for a particular knot marked within the rectangle in the top panel using the same color keys. These quantities from left to right are density ρ, pressure p, HI fraction X_HI and temperature T/μ. A zoomed inset of the forward shock obtained from H/He EoS is shown as well with red dots to demonstrate the importance of resolving the shock (see text).