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A: Given elements are , Ar, He, Kr, Ne
Correct answer is (A).
Intermolecular force is between two molecules and it is denoted by dotted line.
It is hydrogen bond between NH3 molecules.
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- Answer the data and who among them has the best goodness of fit model?What happen to the separation raid (RS) I change the mobile phase from methanol/water 70/30 till methanol/water 80/20. How does polarity affect?Consider the data in the table. Compound Melting point (°C) ????? (??/???)ΔHfus (kJ/mol) Boiling point (°C) ????? (??/???)ΔHvap (kJ/mol) HFHF −83.11 4.577 19.54 25.18 HClHCl −114.3 1.991 −84.9 17.53 HBrHBr −86.96 2.406 −67.0 19.27 HIHI −50.91 2.871 −35.38 21.16 Using the data in the table, calculate Δ?fus and Δ?vap for HF. Δ?fus= J/(K⋅mol) Δ?vap= J/(K⋅mol) Determine the entropy change when 8.70 mol HF(g) condenses at atmospheric pressure. Δ?= J/K