What is the major different between the particles in a liquid and a gas of the same substance at the same temperature?

Question

a
The particles in the gas are moving faster than the particles in the liquid
b
The particles in a liquid are still connected, but the particles in a gas have separated from each other and now fly around to fill the container
c
The particles in the liquid have higher masses than the particles in the gas
d
The particles the gas are separated, so they absorb less heat than normal, which is why gases are typically cooler than liquids

Answer 1

The major difference between the particles in a liquid and a gas of the same substance at the same temperature is:

b. The particles in a liquid are still connected, but the particles in a gas have separated from each other and now fly around to fill the container.

In a liquid, the particles are still close together and have strong intermolecular forces that keep them connected, allowing them to slide past one another. In contrast, gas particles are much farther apart, have significantly weaker intermolecular forces, and move freely and rapidly to fill the available space in a container.