List of top Chemical Engineering Questions

The mixing process is
The degrees of freedom for a system consisting a gaseous mixture of \( N_2 \), \( H_2 \), and \( NH_3 \) is
A bypass stream in a chemical process is useful, because it
Sometimes in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as
In a chemical reaction the material balance calculation is based on
The substance that appears in one incoming stream and outgoing stream which serves as reference for computations is called as a
For identical feed comp., flow rate, conversion and for all positive reaction orders the ratio of the volume of mixed reactor to the volume of plug flow reactor
In a semi-batch reactor
The best combination of reactors for an exothermic reaction is:
If the conversion of a first-order liquid phase reaction occurring in a CSTR is 75%, molar feed rate is 5 mol/min, the rate of the reaction is 5 $\frac{mol}{litre \cdot min}$ then the volume of the reactor (in litre) is?
If $ \tau = 5 $ s, first order rate constant, $ k = 0.25 $ sec$^{-1}$ and the number of tanks, $ N $ is 5, then the conversion is
Which of the following is true for gas-phase reactions?
Which of the following represents heterogeneous catalytic reaction?
What is the activity of a catalyst when a time $ t = 0 $?
The mass of material that can be fed per unit time to a unit area of the screen is called as
100-mesh screen means
In which of the following pumps, the displacement of fluid is by rotating action
Kozney Carman equation is used for finding
The flow of incompressible fluids without the presence of shear is referred to as
For an ideal gas mixture, the fugacity of a component is equal to
When the reactants and products are at their standard states, the change in enthalpy accompanying the formation of 1 mole of a substance from the constituent elements is termed as:
Entropy of a system is:
In which of the following process involving an ideal gas, the change in internal energy and the change in enthalpy would be zero?
A recycle ratio is defined as:
The ratio of moles of the reactant converted to the desired product and moles of the reactant converted to undesired product is called as: