(a)
Interpretation: The freezing point of liquid according to the given heating curve needs to be determined.
Concept Introduction:
Solid state has strong intermolecular force of attraction between particles whereas the gaseous particles have weakest intermolecular forces between particles. Due to intermolecular force of attraction between particles, different interconversions are possible between these three states like evaporation, condensation, sublimation etc.
These states have different intermolecular forces between substances. The intermolecular forces exist between different molecules and are mainly 4 types;
- London dispersion force
- Hydrogen bond
- Dipole-dipole bond
- Ion-dipole bond
(b)
Interpretation: The boiling point of liquid according to the given heating curve needs to be determined.
Concept Introduction:
Solid state has strong intermolecular force of attraction between particles whereas the gaseous particles have weakest intermolecular forces between particles. Due to intermolecular force of attraction between particles, different interconversions are possible between these three states like evaporation, condensation, sublimation etc.
These states have different intermolecular forces between substances. The intermolecular forces exist between different molecules and are mainly 4 types;
- London dispersion force
- Hydrogen bond
- Dipole-dipole bond
- Ion-dipole bond
(c)
Interpretation: The greater enthalpy either enthalpy of fusion or enthalpy of vaporization according to the given heating curve needs to be determined.
Concept Introduction:
Solid state has strong intermolecular force of attraction between particles whereas the gaseous particles have weakest intermolecular forces between particles. Due to intermolecular force of attraction between particles, different interconversions are possible between these three states like evaporation, condensation, sublimation etc.
These states have different intermolecular forces between substances. The intermolecular forces exist between different molecules and are mainly 4 types;
- London dispersion force
- Hydrogen bond
- Dipole-dipole bond
- Ion-dipole bond
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EBK CHEMICAL PRINCIPLES
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