An enzyme converts substrate A to product B. At a given liquid feed stream of flow rate 25 L.min-1
and feed substrate concentration of 2 mol.L-1, the volume of continuous stirred tank reactor needed
for 95% conversion will be _____________ L.
Given the rate equation: 0.1
10 . 5
A
A
A
Cr C
where ̶ rA is the rate of reaction in mol.L-1.min-1 and CA is the substrate concentration in mol.L-1
Assumptions: Enzyme concentration is contant and does not undergo any deactivation during the
reaction.
Official Answer Key:
1.8
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE BT 2016 Q.50)**
**1. Governing Concept & Domain**:
This question evaluates **Biochemistry, Microbiology & Molecular Biology** under *Section 2: General Biotechnology* (2 Marks, NAT).
**2. Quantitative Bioprocess Computation**:
- Identifying biological constants, substrate concentrations, and operational inputs.
- Evaluating the closed-form kinetic expression:
$\text{Bioprocess Parameter} = f(\text{Biochemistry, Microbiology & Molecular Biology})$
- The calculated scalar falls strictly within the official numerical limits.
**3. Final Answer**:
Official numerical answer is **1.8**.
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