Arocket engine uses a h2-o2 mixture as a propellant. the mean molar mass of the propellant is 11.58 kg/kmol with ratio of specific heats g = 1.22. the stagnation pressure at the throat of the nozzle is 8.26 mpa and the static temperature at the throat is 3305 k. the throat area at = 750.4 cm2 . the ratio of the exit plane area to the throat area is 39.8 and the static pressure at the exit plane of the nozzle is 18.1 kpa. (a) calculate the mass flow rate of propellant throug

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic