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Question

For the reaction N2(g)+3H2(g)2NH3(g), under certain conditions of temperature and partial pressure of the reactants, the rate of formation of NH3 is 1.0×104mollit1h1. The rate of conversion of H2 under the same conditions is:

A
6.7×104mollit1h1
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B
3.3×103mollit1h1
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C
1.5×104mollit1h1
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D
0.5×104mollit1h1
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Solution

The correct option is C 1.5×104mollit1h1
N2(g)+3H2(g)2NH3(g)
Rate of Rnα(ROR)=11d[N2(g)]dt=13d[H2(g)]dt=12d[NH3(g)]dt
ROR=RODofN2(g)1=RODofH2(g)3=ROAofNH3(g)2
ROA= of NH3(g)=2×RORROR=1×1042
ROD= Rate of disappearance
ROA= Rate of Appearance.
ROR=1×1042=RODofH23
RODofH2=32×104mollit1h1

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