Plz ! use the investigation set up below to write a conclusion statement for what is happening to the liquid. choose the best answer. a. when the heat was increased the liquid molecules contracted and decreased in volume. b. there is not enough information to determine the conclusion to the investigation. c. when the heat was decreased the liquid molecules began to move faster. d. when the heat was increased the liquid molecules expanded and increased in volume. ps its d. i solved it myself because nobody answered

When we start heating to the given liquid the molecules absorbed energy and the average kinetic energy of each molecues present in liquid increased.

As the kinetic energy of molecules increases the molecules started to moves and the atraction force among the molecules decreased as a result the volume of liquid increased.

Hence option D correct explanation for given liquid.

D. When the heat was increased the liquid molecules expanded and increased in volume

a. hope i'm right

explanation:

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.