List of top Chemical Engineering Questions

U-tube manometer is an example of
The volumetric expansion of a liquid caused by temperature changes is minimum for
A proportional controller with a gain of \( K_c \) is used to control a first order process. The offset will increase, if
A negative gain margin expressed in decibels means a/an _____ system
Which of the following is a desirable characteristic of an instrument?
Pick out the most suitable instrument for measuring temperature in the range of \(-40^\circ C\) to \(425^\circ C\)
In autocatalytic reactions
The dispersion model accounts for
According to tanks in series model, the spread of the tracer curve is proportional to
The reaction in which the rate of reaction is a function of rate constant alone is
Rate of solid-state diffusion does not depend on which of the following?
The dimensions of the rate constant for \( n^{th} \) order homogeneous reaction are
The rate equation in which rate equation corresponds to a stoichiometric equation is called
Arrhenius equation shows the variation of ____ with temperature
A plug flow reactor is characterized by
For a zero order reaction, the fractional conversion of the reactant is
For an ideal plug flow reactor the value of the Peclet number is
Pick out the wrong statement
The increase in weight of dried porcelain crucible in humid atmosphere is because of ____
The diffusivity (D) in a binary gas mixture is related to the temperature (T) as ____
Which of the following common trays offers the lowest pressure drop ____
Rate determining step in a reaction consisting of a number of steps in series is the
Molecularity of reaction
In a first order reaction, the time required to reduce the concentration of reactant from 1 mol/lit. to 0.5 mol/lit. will be ____ that required to reduce it from 10 mol/lit. to 5 mol/lit. in the same volume
If moisture content of solid on dry basis is \( X \), then the same on wet basis is ____