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Consider a CSTR used to carry out a reversible isomerization reaction (A↔B) where both the forward...

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Chemistry

Consider a CSTR used to carry out a reversible isomerizationreaction (A↔B) where both the forward and reverse reactions arefirst-order. Feed is pure A and the reaction is assumed to beelementary. CPa =1255 J/moleºK CPb = 1172 J/moleºK kf = 8.83 x 104e –6290/T sec-1 kr = 4.17 x 1015 e –14947/T sec-1 where T is indegrees Kelvin (a) Is the reaction exothermic or endothermic? Whatis the standard enthalpy change for the reaction? (b) What is theequilibrium fraction conversion at 340ºK? (c) What conversion isachieved if t = 480 sec and the reactor temperature is 340ºK? (d)For t = 480 sec, sketch the curve of fraction conversion versusreactor temperature over the range 320 to 370ºK. (e) Derive theequation for the curve describing the energy balance on the CSTRfor adiabatic operation. Substitute variables into this expressionto obtain a relation between X, Tinlet , and Toutlet. (f) In orderto maximize production of B when t = 480 sec, what inlettemperature should be specified?

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