1.

In the  manufacture of \[N{{H}_{3}}\] by Haber's process, the condition which would give maximum yield is                 \[{{N}_{2}}+3{{H}_{2}}\]⇌ \[2N{{H}_{3}}+Q\,kcal\] [NCERT 1978; EAMCET 1980; MNR 1987; AFMC 1999;  CPMT 1983, 84, 86, 94; MP PMT 1999]

A.                 High temperature, high pressure and high concentrations of the reactants
B.                 High temperature, low pressure and low concentrations of the reactants
C.                 Low temperature and high pressure
D.                 Low temperature, low pressure and low concentration of \[{{H}_{2}}\]
Answer» D.                 Low temperature, low pressure and low concentration of \[{{H}_{2}}\]


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