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In a material balance equation what is the difference between generation and consumption from input and...

In a material balance equation what is the difference between generation and consumption from input and output, need an example like a chemical steady state to show the difference with clear text on defining them apart

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Answer #1

General material balance for a chemical rection

input-output+ generation-consumption=Accumulation

for steady state accumulation is 0

Input: whatever enters through the boundaries of the system

output: whatever exits through the boundaries of the system

Consumption: is used up within the system boundaries

Generation: is builtup within the system boundaries

Rate of the reaction = K* CA = - rA

Volume of the system is V

Material balnace for A

input-output+ generation-consumption=Accumulation

NA0 + NA + 0 -K* CA * V = 0

Material balnace for B

input-output+ generation-consumption=Accumulation

0 + NB + K* CA * V - 0 = 0

Material balnace for C

input-output+ generation-consumption=Accumulation

NC0 + NC + 0 - 0 = 0

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