The following gas-phase reaction is carried out in a pfr operating isothermally at 650 k and a constant pressure of 3 atm.
a -> 2b, ra = -kca where k = 4.08*10^9[s-1]*e^(-27000[cal/mol]/r t)
the feed consists of a mixture of a and an inert that is twice the molar flowrate of a.
there is a disruption in the upstream process and the inlet molar flowrate of a is now reduced by a factor of 2 (i. e. fa0, new = 0.5 fa0), but the flowrate of inert (fi0,new = fi0) remains constant. you must keep the conversion of a in the reactor at 90%. you cannot change the pressure or the reactor volume so you decide to change the temperature.
a) what temperature do you recommend to maintain a constant conversion of a?
b) qualitatively explain your answer to part (a). in other words, why should the temperature be reduced or raised to maintain x = 0.9?

am i too late?

explanation:

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.