Which of the following do not have molecules in motion? gases solids liquids they all have molecules in motion.

They all have molecules in motion,

you may not think this about solids but the molecules are packed so closely together there is no room to get past each other.

for a liquid the molecules are packed densely but are loosely place, giving them the space to slip past each other, making it possible to form to what ever the liquid is in.

for gas the molecules are not packed so loosely that it is not a definable shape, but can be compressed

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

the volume increases