Project ForgeChemical Reaction Engineering
Ideal Reactor Design
GATE 2012
Medium
The first order liquid phase reaction A→P is conducted isothermally in a plug flow reactor of 5 liter volume. The inlet volumetric flow rate is 1 liter/min and the inlet concentration of A is 2 mole/liter. If the exit concentration of A is 0.5 mole/liter, then the rate constant, in min⁻¹, is
- A0.06
- 0.28
- C0.42
- D0.64
Explanation
τ=V/Q=5/1=5 min. PFR design equation for first order: kτ=ln(CA0/CA)=ln(2/0.5)=ln4=1.386. k=1.386/5≈0.28 min⁻¹.
Source: GATE CH 2012 (2012)
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