Any particles.
Random motion is a property of all particles. Brownian motion, the random redistribution of particles due to individual random motion, is possible in fluids, including gasses, liquids, and plasmas, but not in solids- the structure of solids prevents individual particles from moving out of place until they gain enough energy for their small random movements to break free. The key feature of gasses relating to motion is that the particles have an appreciable amount of space between them and can travel many times farther before encountering another gas particle than is possible in a liquid. This allows the rapid diffusion of different gasses into a homogeneous mixture.
higher concentration to lower concentration in order to achieve equilibrium. This process is known as diffusion and is driven by the random movement of particles.
Gas particles travel in all directions, bouncing off each other and their container walls. The direction of their movement is random and depends on various factors such as temperature, pressure, and volume.
Gas particles move in a random and constant motion, frequently colliding with each other and their surroundings. While they do not travel in perfectly straight paths, they do exhibit some degree of directional motion until they collide with other particles.
Electrons in an electron wave move in a wave-like manner, oscillating as they travel through a material. These movements are governed by the wave nature of particles, described by the principles of quantum mechanics.
It needs particles, so Air, Liquid or Solid to travel. so the medium is any particles, so if there is no particles, sound cannot travel.
to a random place
Particles move faster at higher temperatures because increased thermal energy results in greater kinetic energy. This higher kinetic energy causes the particles to vibrate or move more quickly, leading to faster propagation of the wave.
The average speed of particles in a substance is determined by the temperature of the substance. Higher temperatures indicate faster particle speeds, while lower temperatures indicate slower particle speeds. This relationship is governed by the kinetic theory of gases.
by car
Sound, unlike light, needs a medium through which to travel. Sound relies on vibrating molecules or particles. Sound can travel through air at about 3 km/s as it vibrates particles and then the neighbouring particles etc. but it can travel much faster through steel because the particles are much more tightly packed.In outer space there are not enough particles to vibrate, no neighbouring particles for the very few particles that are there. No particles means that there is no sound.
Gas particles move randomly in all possible directions and travel in a straight path.