The exothermic reaction of stillbene (A) to form the economically important trospophene (B) and methane (C), i.e.,
A ⎯⎯→ B +C
was carried out adiabatically and the following data recorded:
The entering molar flow rate of A was 300 mol/min.
(a)What are the PFR and CSTR volumes necessary to achieve 40% conversion? (VPFR=72 dm3,VCSTR=24 dm3)
(b)Over what range of conversions would the CSTR and PFR reactor volumes be identical?
(c)What is the maximum conversion that can be achieved in a 105-dm3
CSTR?
(d)What conversion can be achieved if a 72-dm3PFR is followed in series by a 24-dm3CSTR?
(e)What conversion can be achieved if a 24-dm3CSTR is followed in a series by a 72-dm3PFR?
(f)Plot the conversion and rate of reaction as a function of PFR reactor volume up to a volume of100dm3.
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- A substance (A) reacts to form another substance (B) according to: 3B(g) = 2A(g) The reaction is run at a particular temperature with the concentrations of A and B monitored over time and plotted on the graph below. At what time was equilibrium fırst reached and what is the approximate value of the equilibrium constant? 2.0 1.8 E 1.6 1.4 [B] 1.2 1.0 0.8 0.6 0.4 [A] 0.2 0.0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 time / min O Equilibrium was reached at 70 min with K. = 0.0056. O Equilibrium was reached at 30 min with K. = 0.0056. Equilibrium was reached at 30 min with K. = 0.023. Equilibrium was reached at 70 min with K. = 0.023. concentration / Marrow_forwardReactant A decomposes as follows: A Rdesired S T U where n, are reaction orders. Qualitatively find what flow (plug, mixed, or inter- mediate) and what CAO (high, low, or intermediate) should be used for a high conversion to R. 11 12 из Па th Case (a) 1 1 1 1 (b) 1 2 1 1 (c) 2 1 1 1 (d) 1 2 (e) 1 (f) 1 02 21 1 0 2 1 1arrow_forwardThe decomposition of formic acid vapor according to the following reaction at 550oC follows a first-order kinetics, and at the above temperature, the reaction has a half-life of 240 s. HCO2H (g) ® CO2(g) + H2(g); Rate = k[HCO2H] If the initial concentration of HCO2H was 0.160 M, what is its concentration after four half-lives? (A) 0.010 M (B) 0.020 M (C) 0.040 M (D) 0.0050 Marrow_forward
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