What is the strongest type of intermolecular force present in CHF_3? ion-dipole

Question

What is the strongest type of intermolecular force present in CHF_3? ion-dipole dispersion hydrogen bonding dipole-dipole What is the strongest type of intermolecular force present in NH_2CH_3? dispersion dipole-dipole hydrogen bonding ion-dipole Place the following compounds in order of decreasing strength of intermolecular forces: HF > NCl_3 > O_2 HF > O_2 > NCl_3 O_2 > NCl_3 > HF NCl_3 > HF > O_2 What type of intermolecular force causes the dissolution of NaCI in water? hydrogen bonding dipole-dipole forces ion-dipole force dispersion forces None of the above Place the following substances in order of increasing vapor pressure at a given temperature: SF_6 SiH_4 SF_4 SF_6 BrF_3 Place the following substances in order of decreasing boiling point: CO > H_2O > N_2 N_2 > CO > H_2O H_2O > CO > N_2 Choose the substance with the highest surface tension. HOCH_2CH_2OH CH_2F_2 CH_3CH_2F CH_2CH_2OH CH_3CH_2CH_3 Choose the substance with the highest viscosity. (CH_3CH_2)_2 CO C_2H_4Cl_2 HOCH_2CH_2CH_2OH CF_4 Choose the pair of substances that are most likely to form a homogeneous solution. Nacl and Hg C_2H_8 and C_2H_5OH LiF and C_8H_14 Br_2 and PF_3 NH_3 and CH_3OH Which of the following substances would you predict to have the highest Delta H_vap? CH_3Cl HCl HOCH_2Ch_2OH CH_3CH_2OH CH_3CH_2CH_2CH_3 How much energy required to vaporize 48.7 g of CH_2Cl_2 at its boiling point, if its Delta_vap is 31.6 kJ/mol? 31.2 kJ 6.49 kJ 55.1 kJ 15.4 kJ 18.1 kJ

Explanation / Answer

1. b dispersion

CHCl3 is non polar molecule due to dispersion force

2. C hydrogen bonding

   N......H hydrogen bonding

3. a. HF> NCl3>O2

HF is more polar due to hydrogen bond

4. C. ion dipole force

    Na+Cl- ion dipole

5. E. SiH4<SF6<SF4

6. A BrF3>PF5>CF4

7. B.H2O>CO>N2

8.

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