Cstr reactor mole balance equation: the reactor volume required to reach 80% conversion of a for the reaction a-> b + c, the reaction rate equation is ra -k1*ca, the inlet feed rate fao 10 gr mole/hour, the rate constant k, 0.15 liter/gr mole-hour, and the concentration of a in the feed is cao 2.0 gr moles/l. to solv problem only requires solution of an algebraic equation. 4. starting with the cstr mole balance equation,

i'm pretty sure it is letter c.) car

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.