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7. The synthesis of ammonia from the elements is conducted at high pressures and temperatures: N2(g) +3 H2(g) 2 NH3(g) Suppos
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Ans 7:

Total pressure of the mixture = PT = 210 atm

Let the number of moles of N2 in the mixture be = n1 = 31 moles

Let the number of moles of H2 in the mixture be = n2 = 93 moles

Let the number of moles of NH3 in the mixture be = n3 = 13 moles

Let the total number of moles in the mixture be n = n1+ n2 + n3 = 31 + 93 + 13 = 137 moles

Mole fraction of NH3= n3/n = 13/137 = 0.0949 = χNH3

Partial pressure of ammonia = χNH3 x PT = 0.0949 x 210 = 19.929 atm.

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