The action of a catalyst follows its ability to change the
A.heat of reaction
B.heat of formation of the product
C.activation energy
D.equilibrium constant.
Category: Chemical Engineering Mcqs
A Newtonian fluid is one which
A.is frictionless and incompressible
B.has a linear relationship between the magnitude of applied shear stress and the resulting rate of deformation
C.has a nonlinear relationship between the magnitude of spplied shear stress and the resulting rate of deformation
D.has a vapor pressure of 1 N/m2 at 25?C.
A catalyst
A.decreases the activation energy
B.alters the reaction mechanism
C.increases the frequency of collisions of reacting species
D.all of these answers.
Specific heat of a gas for a reversible adiabatic process
A.is zero
B.is infinity
C.is negative
D.varies between zero and infinity
Which of the following has minimum specific heats ratio
A.Hydrogen
B.Nitrogen
C.Mercury vapour
D.Sulphur dioxide
Torr is equal to the pressure of
A.0.1 mm of Hg at 0?C in a standard gravitational field
B.1 mm of Hg at 0?C in a standard gravitational field
C.0.01 mm of Hg at 0?C in a standard gravitational field
D.0.001 mm of Hg at 0?C in a standard gravitational field
Which of the following is a nitrogen compound?
A.Quinoline
B.Ethyl mercaptan
C.Naphthenic acid
D.Tetra ethyl lead
The rate constant for a first-order reaction
A.depends on the unit of time
B.has units of reciprocal time
C.does not change on changing the concentration units
D.all of the above
Fluid continuum is a concept in which
A.the actual molecular structure is replaced by a hypothetical continuous medium
B.fluid particles are widely scattered in space
C.fluid is non-homogeneous
D.fluid density is very low
A system is called open system if
A.only the energy crosses the system boundary
B.both energy and mass cross the system boundary
C.neither energy nor mass crosses the system boundary
D.only the mass crosses the system boundary
