Consider the following system of gas-phase reactions: B is the desired product, and X and Y are foul pollutants that are expensive to get rid of. The specific reaction rates are at 27 C. The reaction system is to be operated at 27 C and 4 atm. Pure A enters the system at a volumetric flow rate of 10 dm 3 /min. (a) Sketch the instantaneous selectivities as a function of the concentration of C A . (b) Consider a series of reactors. What should be the volume of the first reactor

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?