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Chemical Reaction Engineering

Chemical Reaction Engineering
The vessel dispersion number (D/μL) for plug flow is

∞
750
500

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Chemical Reaction Engineering
For a mixed flow reactor operating at steady state, the rate of reaction is given by

- dCsub>A/dt
FA0/V . Xsub>A
FA0/V - dCsub>A/dt
FA0/V + dCsub>A/dt

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Chemical Reaction Engineering
Find a mechanism that is consistent with the rate equation and reaction given below: 2A + B → A₂B, ( - rA) = k.CA.CB

A + B ⇋ AB ; AB + A → A₂B
A + A ⇋ AA;AA + B → A₂B
A + B ⇋ AB;AB + A → A₂B
A + A ⇋ AA;AA + B → A₂B

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Chemical Reaction Engineering
At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

1.6
2
2.24
2.5

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Chemical Reaction Engineering
With increase in temperature, the rate constant obeying Arhenious equation

Decreases exponentially
Can either increase or decrease ; depends on the frequency factor
Increases
Decreases

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Chemical Reaction Engineering
On application of pressure to the equilibrium system, ice ⇋ water; which of the following phenomenon will occur?

Equilibrium will not be attained
More ice will be formed
Water will evaporate
More water will be formed

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