Relative to liquids and gasses, they have the least amount of energy. In terms of the actual particles themselves, the amount of energy they possess depends on their structure and composition along with the temperature.
Yes, particles of a gas have high energy compared to particles in a solid or liquid because they are moving rapidly and have more kinetic energy. This movement and energy is what allows gas particles to spread out and fill the space of their container.
When gaseous particles move from a place where there are lots of particles to a place where there are less particles, the pressure in the place that they are leaving decreases, and the pressure in the place that they are going to increases. In general, the particles will keep moving until the pressures in each place are equal.
No, they are spread out. Gases are less dense than solids and liquids, which is caused by the particles being spread out.
When gas particles move faster, their kinetic energy increases, which in turn increases the temperature of the gas. This increase in temperature is a result of the particles colliding with each other and the container walls at greater speeds, transferring more energy as heat.
There are lots of things they don't transfer.
False. You can conserve energy by using less electricity and fossil fuel.
Particle spacing is the closest together in solids. In liquids the spacing is close, however the particles have the freedom of movement. In gas, the particles have lots of kinetic energy, therefore they are far apart.
Yes, particles in a gas have high kinetic energy because they are constantly moving and colliding with each other and the walls of their container at high speeds. This movement is what gives gases their ability to expand and fill the space they are in.
Lots of differences. For example: light is a flow of electrically neutral particles (called photons), that move at the speed of light (at least, in a vacuum). Electricity is a flow of charged particles - often electrons - that move at speeds below the speed of light.
The movement is random, but there is a net movement from regions where there are lots of particles to ones where there are fewer particles.
A large energy saving one. It will keep lots of hot water and will use less energy when not in use.