Chemical Engineering - Chemical Reaction Engineering - Discussion
Discussion Forum : Chemical Reaction Engineering - Section 8 (Q.No. 32)
32.
Mean residence time is equal to the space time, when
Discussion:
3 comments Page 1 of 1.
Rajveer said:
1 year ago
Mean residence time (MRT) is equal to space-time (τ) when there is no change in the number of moles in the reaction.
This is because:
MRT = Volume of reactor/Volumetric flow rate.
τ = Volume of reactor/Volumetric flow rate.
When there is no change in the number of moles, the volumetric flow rate remains constant, making MRT equal to τ.
In other words, MRT = τ when the reaction is isothermal (no temperature change) and isochoric (no volume change).
This occurs in reactions where there is no change in the number of molecules, only their configuration or composition, such as isomerization or catalytic reactions.
This is because:
MRT = Volume of reactor/Volumetric flow rate.
τ = Volume of reactor/Volumetric flow rate.
When there is no change in the number of moles, the volumetric flow rate remains constant, making MRT equal to τ.
In other words, MRT = τ when the reaction is isothermal (no temperature change) and isochoric (no volume change).
This occurs in reactions where there is no change in the number of molecules, only their configuration or composition, such as isomerization or catalytic reactions.
Chayanika said:
2 years ago
@All.
Option B and C are correct.
When everything is constant space time=mean residence time.
When there is no change in a number of moles, that means it’s the CVRS system. So option C is also the answer.
Option A can’t be because space-time has nothing to do with what’s going on inside the reactor. It only depends on the mean residence time.
Option B and C are correct.
When everything is constant space time=mean residence time.
When there is no change in a number of moles, that means it’s the CVRS system. So option C is also the answer.
Option A can’t be because space-time has nothing to do with what’s going on inside the reactor. It only depends on the mean residence time.
Bashir said:
5 years ago
Please explain the given answer.
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