Related Questions

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
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?
A Temperature should be high in the beginning and decreased towards the end of the reaction
B Very low temperature should be used throughout the reaction
C Very high temperature should be used throughout the reaction
D None of these
Which of the following is an exothermic reaction?
A Conversion of graphite to diamond
B Decomposition of water
C Dehydrogenation of ethane to ethylene
D None of these
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
Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an
A Explosive
B Soap
C Detergent
D Analgesic drug
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 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
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

Next steps