Account for each of the following Observations About of substances. Use appropri

Question

Account for each of the following Observations About of substances. Use appropriate principles of chemical bonding And/OR intermolecular forces. Response must include information about both substances. At 25 degree C and 1 atm F_2 is A gas, I_2 a solid. melts at a higher temp(2852 degree C) than Na F (993 degree C) Even though NH_3 and CH_4 have TildeEqual same molecular mass, NH_3 has a much higher boiling pt(- 33 degree C) than CH_4(-164 degree C) Si melts e (1410 degree C) Cl_2 at (- 101 degree C) NH_3 very soluble in H_2O, whereas PH__3 is only moderately soluble.

Explanation / Answer

A) due to higher molar mass vanderwall forces of attraction in molecules of I2 is stronger than F2. Hence F2 is gas and I2 is solid.

B) due to higher lattice energy in MgO. It has higher melting point NaF.

C) due to presence of H-bonding in NH3 molecule it have higher boiling point than CH4.

D) Si forms network covalent lattice while Cl2 is gas.

E) This is because NH3 can form H-bonding with water while PH3 can't.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.