Out of N2 and NH3, which one will have greater value of ‘a’ and which one will have greater value of ‘b’?

Question

Out of N2 and NH3, which one will have greater value of ‘a’ and which one will have greater value of ‘b’?

Out of N₂ and NH₃, which one will have greater value of ‘a’ and which one will have greater value of ‘b’?

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Salim Ahmed Kawsar · Answer 1 · Feb 05, 2023 15:29:48

(I) As NH₃ is more easily liquefiable (due to hydrogen bonding), intermolecular forces of attraction are stronger than in N₂. Hence, NH₃ will have greater value for ‘a’

(II) As NH₃ molecule is larger in size than N₂, hence NH₃ will have greater value for ‘b’

For NH₃, a= 4.17 L² atm mol^-2, b= 0.0371 L mol^-1

For N₂, a= 1.39 L² atm mol-², b = 0.0319 L mol^-1

Salim Ahmed Kawsar · Answer 2 · Feb 05, 2023 15:29:48

1. As NH₃ is more easily liquefiable (due to hydrogen bonding), intermolecular forces of attraction are stronger then in N₂. Hence, NH₃ will have greater value of ‘a’.

2. As NH₃ molecule is larger in size than N₂, hence NH₃ will have greater value for ‘b’.

(For NH₃, a = 4.17 L² atm mol^-2, b = 0.0371 L mol^-1

For N₂, a = 1.39 L² atm mol^-2, b = 0.0319 L mol^-1)

Out of N2 and NH3, which one will have greater value of ‘a’ and which one will have greater value of ‘b’?

2 Answers