951. With increase in K2/K1 in case of a unimolecular type elementary reactions as shown in the bellow figure, the fractional yield of ‘R’ in mixed reactor (for a given conversion of ‘A’) ?
A. Decreases
B. Increases
C. Increases linearly
D. Remain same
952. The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?
A. Activation
B. Potential
C. Binding
D. Threshold
953. Equilibrium of a chemical reaction as viewed by kinetics is a ______________ state?
A. Dynamic steady
B. Static steady
C. Dynamic unsteady
D. None of these
954. Kinetics of a catalytic reaction can be best studied on a/an ______________ reactor?
A. Mixed
B. Integral (plug flow)
C. Differential (flow)
D. Either A., B. and C.
955. Which of the following is the most suitable for very high pressure gas phase reaction ?
A. Batch reactor
B. Tubular flow reactor
C. Stirred tank reactor
D. Fluidised bed reactor
956. Helium-mercury method can be used to determine the _____________ of the catalyst particle?
A. Pore volume
B. Solid density
C. Porosity
D. All A., B., & C.
957. A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) ?
A. ∝ CA
B. ∝ 1/CA
C. Independent of temperature
D. None of these
958. Which of the following is used for calcination of limestone and dolomite in industrial practice?
A. Fluidised bed reactor
B. Moving bed reactor
C. Fixed bed reactor
D. None of these
959. A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that _____________ in the two reactors?
A. Both conversion as well as concentration are same
B. Conversion in both will be the same but concentrations will be different
C. Both the conversion as well as concentrations will be different
D. None of these
960. Fractional conversion _____________ with increase in pressure for ammonia synthesis reaction i.e., N2 + 3H2 ⇌ 2NH3?
A. Increases
B. Decreases
C. Remains unchanged
D. Unpredictable from the data
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