MCQ
What is the dominant intermolecular force or bond that must be overcome in converting liquid $CH_3OH$ to a gas?
- ADipole-dipole interaction
- BCovalent bonds
- CLondon dispersion force
- ✓Hydrogen bonding
In between $\mathrm{CH}_{3} \mathrm{OH}$ molecules, intermolecular $H-$bonding exists.
Hence, it is the intermolecular $\mathrm{H}$ - bonding that must be overcome in converting liquid $\mathrm{CH}_{3} \mathrm{OH}$ to gas.
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| $\Delta H \,(kJ/mol)$ | |
| $\frac 12 A \rightarrow B$ | $+150$ |
| $3B \rightarrow 2C + D$ | $-125$ |
| $E + A \rightarrow 2D$ | $+350$ |
For $B + D \rightarrow E + 2C, \Delta H$ will be ............. $\mathrm{kJ/mol}$
