Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 1: Mole Balances

Additional Homework Problems

CDP1-AA

A 200 dm3 constant-volume batch reactor is pressurized to 20 atm with a mixture of 60% A and 40% inert. The gas-phase reaction is carried out isothermally at 227°C.








V = 200-dm3
P = 20 atm
T = 227°C

 

  1. Assuming that the ideal gas law is valid, how many moles of A are in the reactor initially? What is the initial concentration of A?

     

  2. If the reaction is first order:

    Calculate the time necessary to consume 99% of A.

     

  3. If the reaction is second order:

    Calculate the time to consume 80% of A. Also calculate the pressure in the reactor at this time if the temperature is 127°C.

     

Solution