List of top Chemical Engineering Questions

In a heterogeneous catalytic reaction, the effectiveness factor is:
The reaction type for acid catalysed ester hydrolysis will be:
A zero-order reaction has a rate that is:
When the conversion of a liquid phase reaction of first order occurring in a CSTR is 60%, and the molar feed rate is 10 mol/min, and the volume of the reactor is 0.50 litre, then the reaction rate in mol/lit/min will be:
The rate-determining step in a reaction mechanism is the one with:
What happens to the air in a cooling and dehumidification process?
In order to have efficient leaching of the desired material, the process Flaking is done to which of the following raw material:
What type of dryer is typically used for drying granular materials like grains?
For temperature sensitive pharmaceuticals which one of the following drying methods is ideal?
Tannin is extracted from tree barks by leaching with:
The constant rate period in drying refers to the stage when:
Which of the following equipment is essential in a simple distillation setup?
In a gas absorption process, the gas phase is typically:
According to penetration theory, the relationship between mass transfer coefficient (k) and diffusivity (D) is given by .............
Which of the following increases the efficiency of liquid-liquid extraction?
Which of the following is NOT a type of distillation?
The distribution of a solute between two immiscible liquids is governed by:
Pendular state in drying of wet solids generally refers to:
A hydraulic system operating at $80^\circ$C must be cooled to $45^\circ$C using a heat transfer oil. A water source of $30^\circ$C is available. The effectiveness of heat exchanger will be
With respect to incident radiation, transmissivity varies with
The evaporative heat transfer coefficient is typically
Double-pipe heat exchangers are used for cases where the heat transfer area requirement is around
Consider a uniformly tapered steel rod of circular cross-section of 1 m length. The diameter of the rod at one end is 5 cm, and that at the other end is 2.5 cm. If the heat flux at the end of the larger cross-section is 2500 kcal/m$^2\cdot$hr, the heat flux at the other end is equal to
A smaller HTU indicates:
What type of process is used to separate liquid mixtures based on differences in volatility?