Search
.Management Sciences
Category: Chemical Reaction
Maximum equilibrium conversion for endothermic reaction is obtained at the ______________ temperature?
0
A. Highest possible
B. Lowest possible
C. Intermediate
D. Room
Helium-mercury method is used for the measurement of the ________________ of the catalyst?
A. Surface area
B. Porosity
C. Pore volume
D. Both B. & C.
Consider the ‘n’ th order irreversible liquid phase reaction A → B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot ?
A. CA0 Vs t1/2
B. ln CA0 Vs t1/2
C. CA0 Vs ln t1/2
D. ln CA0 Vs ln t1/2
The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the_________________?
A. Increased temperature reduces the activation energy
B. Fraction of molecules having threshold energy increases
C. Collision frequency increases
D. Value of threshold energy decreases
The first order series reaction as shown in the bellow figure is conducted in a batch reactor. The initial concentrations of A, B and C (CA0, CB0, CC0 respectively) are all non-zero. The variation of CB with reaction time will not show a maximum, if___________________?
A. k2 CB0 > k1 CA0
B. k CA0 > k2.CB0
C. CB0 > CA0
D. CA0 > CB0
For any reaction, we may write conversion as a function of______________________?
A. Time
B. Temperature
C. Concentration
D. All A., B. & C.
A reaction which is catalysed by a base is catalysed by all substances which have a tendency to_______________________?
A. Lose a proton
B. Gain a proton
C. Gain an electron
D. None of these
Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure ?
A. Langmuir adsorption isotherm
B. Adsorption isobar
C. Freundlich adsorption isotherm
D. None of these
The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between___________________?
A. 2-5 %
B. 7-10 %
C. 12-15 %
D. 20-25 %
Recent Comments