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Cheng 211 Introduction To Chemical Engineering Thermodynamics

The document outlines thermodynamic problems related to chemical engineering, specifically focusing on heat transfer calculations for various reactions involving ethylene, hydrogen, and acetylene. It includes scenarios such as the production of ethanol and hydrogen from specific feed mixtures and conditions, as well as heating acetylene in a steady-flow process. The problems require determining heat transfer per mole and final temperatures based on given parameters.

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20 views1 page

Cheng 211 Introduction To Chemical Engineering Thermodynamics

The document outlines thermodynamic problems related to chemical engineering, specifically focusing on heat transfer calculations for various reactions involving ethylene, hydrogen, and acetylene. It includes scenarios such as the production of ethanol and hydrogen from specific feed mixtures and conditions, as well as heating acetylene in a steady-flow process. The problems require determining heat transfer per mole and final temperatures based on given parameters.

Uploaded by

its.m7jm
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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CHENG 211 INTRODUCTION TO CHEMICAL ENGINEERING

THERMODYNAMICS

INSTRUCTOR: DR. HAYAT ABDULLA YUSUF

4.31 Ethylene gas and steam at 593.15 K (320°C) and atmospheric pressure are fed to a
reaction process as an equimolar mixture. The process produces ethanol by the reaction:

The liquid ethanol exits the process at 298.15 K (25°C). What is the heat transfer associated
with this overall process per mole of ethanol produced?

4.35 Hydrogen is produced by the reaction:

The feed stream to the reactor is an equimolar mixture of carbon monoxide and steam, and it
enters the reactor at 398.15 K (125°C) and atmospheric pressure. If 60% of the H2O is converted
to H2 and if the product stream leaves the reactor at 698.15 K (425°C), how much heat must be
transferred from the reactor?

4.45 a: Determine the heat transfer (J/mol) when acetelyne is heated in a steady-flow process
from 25 to 500oC at atmospheric pressue.

4.46 : Determinal the final temperature of the aceteylene if heat in the amount of 30, 000 J/mol
is transferrered to the gas, initially at 25oC , in a stead-flow process at atmospheric pressure.

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