Question

Which statement about the temperatures of phase changes and electrostatic forces holding the molecules is correct?(1 point)
Responses

The strength of the forces between molecules in a substance is strongest at higher temperatures
The strength of the forces between molecules in a substance is strongest at higher temperatures

The temperatures at which a substance changes phases indicate the relative strength of the forces between molecules in the substance.
The temperatures at which a substance changes phases indicate the relative strength of the forces between molecules in the substance.

The temperatures at which a substance changes phases is dependent of the size of the molecules in the substance.
The temperatures at which a substance changes phases is dependent of the size of the molecules in the substance.

The strength of the forces between molecules in a substance depends on the number of filled electron shells

Answer 1

"The temperatures at which a substance changes phases indicate the relative strength of the forces between molecules in the substance."

Explanation: Melting and boiling points reflect how much energy is needed to overcome intermolecular forces—higher phase-change temperatures mean stronger intermolecular forces (though molecular size, polarity, and specific interactions like hydrogen bonding also affect those temperatures).