The entering flow into a well-mixed continuous stirred-tank reactor (cstr) is 50 l/s. the total reactor volume is 10 m but the reactor should never be filled to more than 80%. a reaction with the stoichiometry a + 2b → c is run in the reactor. the feed contains an excess of a. after a while, 10% of the available b has been converted to c. (a) calculate the space time t and the space velocity sv. (b) assume the above reaction is of third order, define the rate of the reaction above and provide the dimensions of the rate. (c) provide the dimensions for the rate constant k. (d) what is the degree of conversion x after the while mentioned above?

law of conservation of matter

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.