How do weak intermolecular bond strengths affect the melting and boiling point of a substance?(1 point)
Responses
Both the melting point and boiling point are lower.
Both the melting point and boiling point are lower.
Both the melting point and boiling point are higher.
Both the melting point and boiling point are higher.
The melting point is lower, but the boiling point is higher.
The melting point is lower, but the boiling point is higher.
The melting point is higher, but the boiling point is lower.
The melting point is higher, but the boiling point is lower.
The correct answer is: "Both the melting point and boiling point are lower."
Weak intermolecular bond strengths refer to the forces that hold molecules together in a substance. These forces include dipole-dipole interactions, hydrogen bonding, and London dispersion forces. The strength of these intermolecular bonds determines the energy required to overcome them and transition the substance from a solid to a liquid (melting) or from a liquid to a gas (boiling).
When the intermolecular bond strengths are weak, it means that the forces holding the molecules together are not very strong. As a result, less energy is needed to break these bonds and cause the substance to transition between phases.
In the case of melting, weaker intermolecular bond strengths will result in a lower melting point. This is because the molecules in the substance are already relatively loosely held together, and it takes less energy to disrupt their arrangement and turn them into a liquid.
Similarly, weaker intermolecular bond strengths will also result in a lower boiling point. This is because the molecules in the substance are not strongly attracted to each other, so it takes less energy to overcome these weak forces and transition the substance from a liquid to a gas.
Therefore, substances with weak intermolecular bond strengths tend to have lower melting points and lower boiling points compared to substances with stronger intermolecular bonds.