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.Management Sciences
Category: Chemical Reaction
During manufacture of H2SO4, the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the _____________________?
A. Temperature is increased
B. Pressure is reduced
C. Temperature is increased and pressure is reduced
D. Temperature is reduced and pressure is increased
Sulphuric acid is used as a catalyst in the_______________?
A. Hydrogenation of oils
B. Gas phase oxidation of SO2 in chamber process
C. Alkylation of hydrocarbons
D. None of these
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.
. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2__________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO2 to air?
A. (i) increases (ii) decreases
B. (i) decreases (ii) increases
C. (i) increases (ii) increases
D. (i) decreases (ii) decreases
Rate of an autocatalytic chemical reaction is a function of ___________________?
A. Temperature only
B. Pressure only
C. Composition only
D. All A., B. and C.
Rate of a chemical reaction is independent of the concentration of the reactants for a _________________ reaction?
A. Zero order
B. Third order
C. Consecutive
D. None of these
The irreversible reaction, X → Y, is the special case of the reversible reaction, X ⇌ Y, in which the _____________________?
A. Equilibrium constant is infinite
B. Fractional conversion of ‘A’ at equilibrium is unity
C. Concentration of ‘A’ at equilibrium is zero
D. All A., B. and C.
A chemical reaction occurs when the energy of the reacting molecules is __________________ the activation energy of the reaction?
A. Less than
B. Equal to
C. More than
D. Equal to or more than
Reaction rate of a first order reaction, which is half completed in 23 minutes will be _________________?
A. 0.03 sec-1
B. 0.03 min-1
C. 0.03 hr-1
D. 0.05 min-1
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