Gas is one of the states of matter which has no definite shape or volume. Its particles are in random motion. Gases can expand and contract depending on pressure and temperature. They will grow to fill a container of any size.
Gases are all over. You may have caught wind of the climate. The environment is an envelope of gases that encompasses the Earth. In solids, particles and atoms are conservative and near one another. Liquids have iotas that are spread out somewhat more. The atoms in gases are truly spread out, brimming with vitality, and continually moving around in irregular ways.
What is another physical trait of gases? Gases can fill a holder of any size or shape. It doesn’t make a difference in how enormous the compartment is. The atoms spread out to occupy the entire space similarly. Consider an inflatable. Regardless of what shape you make the inflatable, it will be equally loaded up with the gas particles. Regardless of whether you make an inflatable creature, the atoms are spread similarly all through the whole shape.
Liquids can just fill the base of a holder, while gases can fill it totally. The state of fluids is subject to gravity, while less thick gases are sufficiently light to have more opportunity to move.
1. What happens in Evaporation and Condensation?
Evaporation happens when a liquid is warmed up and changes to vapour. Particles at the liquid’s surface vibrate so fast they escape altogether. Condensation happens when a vapour is cooled down and becomes liquid. Evaporation and condensation take place not only at boiling point, but also at much cooler temperatures.
2. What is Plasma?
A plasma is the fourth state of matter. It occurs only when a gas becomes so hot its atoms and molecules collide and electrons are ripped free. This happens inside the Sun, other stars and lightning, and in gas neon tubes. Plasma displays, in which the plasma emits light, are used for many modern television screens.
3. When do things boil?
Things boil from liquid to gas when they reach boiling point, which is the maximum temperature a liquid can reach. For water this is 100° C.
Factors That Affect the Boiling Point:
Boiling is the fast vaporization of a liquid, which commonly happens when a liquid is warmed to temperature with the end goal that its vapour pressure is over that of the environmental factors, for example, gaseous tension or air pressure.
In this manner, a liquid may likewise boil when the weight of the atmosphere is adequately decreased, for example, the utilization of a vacuum siphon or at high elevations
4. What is Pressure?
Pressure is the amount of force pressing on something. Air pressure is the force with which air presses. The force comes from the bombardment of the moving air particles.
5. How does pressure change?
If you squeeze a gas into half the space, the pressure doubles (as long as the temperature stays the same). This is Boyle’s law. If you warm up a gas, the pressure rises in proportion (as long as you keep it the same volume). This is the Pressure Law.
6. What are the Clouds?
Clouds form when warm air is heated by the Sun and rises. As it rises, the warm air cools, eventually becoming cold enough for the water vapour it contains to condense into water droplets, which we can see as clouds.
7. Gas or Vapour?
You may hear the expression “vapour”. Vapour and gas mean something very similar. The word vapour is utilized to portray gases that are generally liquids at room temperature. Genuine instances of these sorts of liquids incorporate water (H2O) and mercury (Hg). They get the vapour title when they are in a vaporous stage. You will likely hear the expression “water vapour” which means water in a gas state. Mixes, for example, carbon dioxide (CO2) are generally gases at room temperature.