Answer:
hello your question lacks the required reaction pairs below are the missing pairs
Reaction system 1 :
A + B ⇒ D [tex]-r_{1A} = 10exp[-8000K/T]C_{A}C_{B}[/tex]
A + B ⇒ U [tex]-r_{2a} = 100exp(-1000K/T)C_{A} ^\frac{1}{2}C_{B} ^\frac{3}{2}[/tex]
Reaction system 2
A + B ⇒ D [tex]-r_{1A} = 10exp( -1000K/T)C_{A}C_{B}[/tex]
B + D ⇒ U [tex]-r_{2B} = 10^9exp(-10000 K/T) C_{B}C_{D}[/tex]
Answer : reaction 1 : description of the reactor system : The desired reaction which is the first reaction possess a higher activation energy and higher temperature is required to kickstart reaction 1
condition to maximize selectivity : To maximize selectivity the concentration of reaction 1 should be higher than that of reaction 2
reaction 2 :
description of reactor system : The desired reaction i.e. reaction 1 has a lower activation energy and lower temperatures is required to kickstart reaction 1
condition to maximize selectivity:
to increase selectivity the concentration of D should be minimal
Explanation:
Reaction system 1 :
A + B ⇒ D [tex]-r_{1A} = 10exp[-8000K/T]C_{A}C_{B}[/tex]
A + B ⇒ U [tex]-r_{2a} = 100exp(-1000K/T)C_{A} ^\frac{1}{2}C_{B} ^\frac{3}{2}[/tex]
the selectivity of D is represented using the relationship below
[tex]S_{DU} = \frac{-r1A}{-r2A}[/tex]
hence SDu = 1/10 * [tex]\frac{exp(-800K/T)}{exp(-1000K/T)} * C_{A} ^{0.5} C_{B} ^{-0.5}[/tex]
description of the reactor system : The desired reaction which is the first reaction possess a higher activation energy and higher temperature is required to kickstart reaction 1
condition to maximize selectivity : To maximize selectivity the concentration of reaction 1 should be higher than that of reaction 2
Reaction system 2
A + B ⇒ D [tex]-r_{1A} = 10exp( -1000K/T)C_{A}C_{B}[/tex]
B + D ⇒ U [tex]-r_{2B} = 10^9exp(-10000 K/T) C_{B}C_{D}[/tex]
selectivity of D
[tex]S_{DU} = \frac{-r1A}{-r2A}[/tex]
hence Sdu = [tex]1/10^7 * \frac{exp(-1000K/T)}{exp(-10000K/T)} *\frac{C_{A} }{C_{D} }[/tex]
description of reactor system : The desired reaction i.e. reaction 1 has a lower activation energy and lower temperatures is required to kickstart reaction 1
condition to maximize selectivity:
to increase selectivity the concentration of D should be minimal
