In solid ammonia, each NH3 molecule has six other NH3 molecules as nearest neighbours. ΔH of sublimation of NH3 at the melting point is 30.8 kJ mole'1 and the estimated ΔH of sublimation in the absence of hydrogen bonding is 14.4 kJ mole'1. Strength of H-bond in solid NH3 is approximately

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In solid ammonia, each NH3 molecule has six other NH3 molecules as nearest neighbours. ΔH of sublimation of NH3 at the melting point is 30.8 kJ mole'1 and the estimated ΔH of sublimation in the absence of hydrogen bonding is 14.4 kJ mole'1. Strength of H-bond in solid NH3 is approximately






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