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Chemical Engineering - MCQ Practice Questions

Chemical Engineering questions for GATE and PSU exams are built on a handful of core subjects applied in many ways. Practice spans fluid mechanics, heat transfer, mass transfer, chemical reaction engineering, thermodynamics, process control and instrumentation, and plant design economics. Numerical solutions carry the assumptions written out, because the assumption is usually what separates a correct answer from a plausible one.

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Q.21Hard

In consecutive reactions A → B → C (both first-order), maximum concentration of intermediate B occurs at which time?

Q.22Hard

Thiele modulus (φ) represents the ratio of which two parameters in heterogeneous catalysis?

Q.23Hard

In a recycle reactor with recycle ratio R, what is the volume reduction factor compared to PFR for equivalent conversion?

Q.24Hard

For homogeneous gas-phase reaction in batch reactor, if pressure increases at constant volume, what happens to reaction rate for 2A → Products?