A. 1 e-t/?
B. e-t/?
C. 1 (e-t/?/?)
A. 3
C. 1
D. 2
A. None of these
B. Equivalent weight
D. Molecular weight
A. ?2?
B. 0
D. ?
A. k ? T1.5
C. k ? T
D. k ? exp(-E/RT)
A. May be lateral mixing of fluid
B. Should not be any mixing along the flow path
D. Neither A. nor B.
A. Diffusion through ash layer
B. Film diffusion
C. Either A., B. or C.
B. K ? ?T.e-E/RT
C. None of these
D. K ? eE/RT
B. 10, 5, 15
C. 5, 10, 15
D. 10, 15, 5
A. Temperature and composition only
C. Temperature and pressure only
D. Pressure and composition only
A. (K1 + K2+K3) CX
B. (K1 + K1) CX
D. (K1 K2) CX
B. Same whether they are connected in series or in parallel
C. Less when they are connected in series
D. More when they are connected in parallel
A. Decreases
C. Remain unaffected
D. Unpredictable from the data
B. Permits operation at the optimum temperature for a long reaction time
C. Higher overall selectivity for a first order consecutive reaction
D. More uniform operating conditions
A. Reactants concentration
B. Catalyst
D. Temperature
A. Normal energy of reactants
B. Activation energy
C. Neither A. nor B.
B. ? exp (-t/?)
C. (1/?) exp (-t/?)
D. (1/?) (-t/?)
A. Plot of rA Vs CA is a straight line with slope k
B. Plot of rA Vs CA is a hyperbola
C. Rate of disappearance of reactant A is maximum, where CA = CB
A. CSTR in series
B. Plug flow reactor
C. CSTR
A. ction
B. Increases /decreases with pressure depending on the stoichiometric co-efficients of the
D. Is independent of pressure
E. Decreases with pressure
A. 12
C. 6
D. 18
B. Higher rate of reaction
C. Higher equilibrium conversion
D. Both B. and C.
A. Plug-flow catalytic reactor
B. Fixed bed reactor
D. Fluidised bed reactor
A. Low temperature in a PFR
C. desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted
D. rR = K1.CA2; E1 = 80 KJ/mole
E. High temperature in a CSTR
A. Binding
B. Potential
D. Threshold
B. CB is
C. 2
D. 0
E. 1
A. Surface area
B. Porosity
C. Pore volume
B. 0.2
D. 0.1
A. Slurry reactor
B. CSTR
C. Batch reactor
B. 190
C. 490
D. 390
A. Langmuir adsorption isotherm
B. None of these
D. Freundlich adsorption isotherm
A. Concentration
B. Time
C. Temperature
B. Radiation hypothesis
C. Chain reaction theory
D. Collision theory and activated complex theory
A. 1 kW
B. 2/3 kW
C. 4 kW
A. 0.5
B. 1
A. Does not affect photo-chemical reaction rates
B. Does not affect a catalysed reaction
D. Normally tends to increase the reaction rate
A. Slow
C. Non-spontaneous
D. Always spontaneous
A. Increased temperature reduces the activation energy
B. Value of threshold energy decreases
D. Collision frequency increases
A. Solid catalysts
C. Darkness
D. Monochromatic radiation only
A. 1
B. 2
D. 1.5
B. P.F. reactors in series
C. P.F. reactor followed by CSTR
A. Autokinetic
B. Non-elementary
D. Parallel
A. Increases
B. Increases exponentially
C. Remains unchanged
A. Decrease in initial concentration of A
B. Increase in initial concentration of A
C. Decrease of temperature
A. External mass transfer
B. Reaction
D. None of the above
A. 4-May
B. 2-May
C. 4-Jul
A. t ? 1/an + 1
B. t ? an
D. t ? 1/an
C. (Time)-1 (concentration)n 1
D. (Time)n 1 (concentration)
A. II, III, I
B. I, II, III
C. III, I, II
A. Nature of the reactants
B. Volume of the reaction vessel
D. Equilibrium constant
Showing 2751 to 2800 of 8709 mcqs