For a particular compound,which is expected to be the largest in general?
A)the heat required to raise the temperature of one mole of the gas 10.0°C
B)the heat required to raise the temperature of one mole of the liquid 10.0°C
C)the molar heat of fusion at the normal melting point
D)the molar heat of vaporization at the normal boiling point

Question

Quizplus · Accepted Answer

The molar heat of vaporization at the normal boiling point is expected to be the largest because it represents the amount of energy required to completely vaporize one mole of the substance at its boiling point. This process requires the breaking of intermolecular forces between the molecules, which requires a substantial amount of energy. The other options only represent the amount of energy required to raise the temperature or change the state of the substance, which is generally less than the energy required for vaporization.

For a Particular Compound,which Is Expected to Be the Largest