recently-discovered moon of Neptune, the temperature will drop down to 900mnHo/300K- Pa19 60 mmHg 30 mmHg c. 270 mmHg o. 300 mmHg OK 17. Which of the following points of the Kinetic Molecular Theory is not always válid? there is no attraction between molecules. B. Temperature is a function of the average kinetic energy. C. gas particles move in rapid, random, straight-line motion. PeRfectly elast D. All of the answers listed are ALWAYS valid under Kinetic Molecular Theory rules. 18. Which of the following is NOT part of the Kinetic Molecular Theory of gases? A A Volume is zero B. Collisions are elastic C. Particles do not have to be in motion D. Kinetic energy is directly related to temperature 19. Which of these changes will increase the vapor pressure of water in a sealed container? A Add more water and reseal the container. B. Shake the container vigorously and let the water settle. C. Add salt to the water and reseal the container. D. Increase the temperature of the water in the container.
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
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