In the formation of SO3 by contact process, the conditions used are
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a
Catalyst, optimum temperature and higher concentration of reactants
b
Catalyst, optimum temperature and lower concentration of reactants
c
Catalyst, high temperature and higher concentration of reactants
d
Catalyst low temperature and lower concentration of reactants
answer is A.
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Detailed Solution
according to Le-Chatlier's principle.2SO2+O2 →2SO3 ,∆H =-42 K.CalIt is exothermic reaction;so favorable conditions are 1.increase the concentration of reactants 2.catalyst 3.optimum temperature