48. The space time necessary to achieve the 80% conversion in the CSTR is 5 hours. What is the entering volumetric flow rate of the fed?a) 0059 L/s b) 0.0142 L/s c) 0.0124 L/s d) 0.0291 L/s51. How much is the area of the curve in the Levenspiel plot that is required to find the PFR volume necessary to achieve 80% conversion under identical conditions as those under which the batch data was obtained?a) 293 s-dm3/mol b) 147 s-dm3/mol c) 265 s-dm3/mol d) 106 s-dm3/mol 55. A certain reaction has a rate given by -rA = 0.005CA2, mol/cm3 – min. If the concentration is to be expressed in mol/liter and time in hours, what would be the value and units of the rate constant?a) 05 mol/L-hr b) 0.0025 L2/mol2- hr c) 0.0005 L/mol-hr d) 0.0003 L/mol-hr QUESTIONS No. 47) – 54): Consider the isothermal gas-phase decompositionreaction: A → B + C which is to take place at a feed rate of A equal to 30.4 moles/s.-The following data was obtained in a batch reactor:X0.20.40.60.8-TA(mol/dm3-s)0.00530.0050.0040.00250.00125

Gas phase decomposition reactionFeed rate X00.20.40.60.8rA0.00530.0050.0040.00250.00125

Answered: 48. The space time necessary to achieve…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Question

48. The space time necessary to achieve the 80% conversion in the CSTR is 5 hours. What is the entering volumetric flow rate of the fed?

a) 0059 L/s b) 0.0142 L/s c) 0.0124 L/s d) 0.0291 L/s

51. How much is the area of the curve in the Levenspiel plot that is required to find the PFR volume necessary to achieve 80% conversion under identical conditions as those under which the batch data was obtained?

a) 293 s-dm³/mol b) 147 s-dm³/mol c) 265 s-dm³/mol d) 106 s-dm³/mol

55. A certain reaction has a rate given by -r_A = 0.005C_A², mol/cm³ – min. If the concentration is to be expressed in mol/liter and time in hours, what would be the value and units of the rate constant?

a) 05 mol/L-hr b) 0.0025 L²/mol²- hr c) 0.0005 L/mol-hr d) 0.0003 L/mol-hr