Give two examples of gaseous substances.
Answers
Answer:
hydrogen gas
nitrogen gas
chlorine gas
What is an Ideal Gas?
An ideal gas can be described as a gas in which all collisions between atoms or molecules are perfectly elastic in nature and the intermolecular attractive forces between the particles of the gas are not present. One can imagine the particles of an ideal gas as a series of colliding perfectly hard spheres but otherwise not interacting with each other. It is important to note that all ideal gases must obey the ideal gas law. This law equates the pressure exerted by a gas on the walls of its container, the absolute temperature of the gas, the volume occupied by the gas, the amount of gaseous substance (or the number of moles of gas), and the universal gas constant.
Explanation:
The gaseous state is one of the four fundamental states of matter (along with the solid state, the liquid state and plasma). Substances that exist in the gaseous phase are commonly referred to as gases. The most common example of a gas is air (the air we breathe is a gas). It can also be considered as a mixture of many gases such as nitrogen, oxygen and carbon dioxide. Some examples of gases are listed below.
Hydrogen
Nitrogen
Oxygen
Carbon Dioxide
Carbon Monoxide
Water Vapour
Helium
Neon
Argon
Ozone
It can be noted that these substances exist in the gaseous phase under standard conditions for temperature and pressure (STP). However, if sufficient pressure is applied to the gas and if the gas is cooled to a low enough temperature, it can be liquefied.