Related Questions

Autocatalytic reactions are best carried out in a
A CSTR
B CSTR in series
C Plug flow reactor
D Recycle reactor
Pick out the exothermic reaction out of the following:
A C + H2O = CO + H2
B CaC2 + H2O = Ca(OH)2 + C2H2
C MgCO3 = MgO + CO2
D All of the above
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
A 400-500
B 900-1000
C 1400-1500
D 1700-1800
In case of staged packed bed reactors carrying out exothermic reaction, use
A High recycle for pure gas
B Plug flow for dilute liquid requiring no large preheating of feed
C Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature
D All of the above
Which phase change is an example of an exothermic process?
A Liquid to Solid
B Gas to Solid
C Gas to Liquid
D All the above
Which of the following is a characteristic of an exothermic reaction?
A Release of heat
B Absorption of heat
C Doesn't involve any change in temperature
D None of the option is correct
What is an exothermic reaction?
A Reaction in which heat is released.
B Reaction in which heat is absorbed.
C Reaction in which neither heat is released nor absorbed.
D None
In an exothermic chemical reaction, the reactants compared to the products have
A Higher temperature
B More energy
C Less energy
D Same energy
A typical example of an exothermic reversible reaction conducted at high pressure in industry is
A Dehydration of ethanol
B Methanol synthesis
C Reformation of methane
D Polymerisation of ethylene
From among the following, choose one which is not an exothermic process.
A Methanol synthesis
B Catalytic cracking
C Ammonia synthesis
D Oxidation of sulphur

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