liquefaction of gases low pressure

Liquefaction of Gases - There are large empty spaces (voids) separating the tiny molecules of gases from one another. Each molecule enjoys an almost independent existence. Molecules are in a state of continuous rapid motion and have negligible attractive forces between..

There are large empty spaces (voids) separating the tiny molecules of gases from one another. Each molecule enjoys an almost independent existence. Molecules are in a state of continuous rapid motion and have negligible attractive forces between them due to wide separation. This is ..

When cooled under pressure ammonia condenses to a colorless liquid, which boils at -33.4 o C. When further cooled, it freezes to a white crystalline snow-like solid, which melts at -77.7 o ..

Pressure directly influences the solubility of gases. Higher the pressure, higher is the solubility: lower the pressure, lower is the solubility. For instance, the solubility of carbon dioxide in water, under normal atmospheric pressure is very ..

Powdered dry ice and ether or acetone, when mixed together, can reduce the temperatures to about -220 o F. At this temperature it is used in liquefaction or solidification of gases..

Why does a gas exert pressure on the walls of container? Consider only those molecules which are moving horizontally. Each molecule hits the container wall and bounces back with the same speed, because the collision is elastic. The molecule then travels in the opposite direction. During ..

Adsorption of Gases on Solids - Adsorption of gases on solids depends on the following factors: i) Nature of the gas (adsorbate) ii) Nature of the solid (adsorbent) iii) Specific area of the solid iv) Pressure of the gas v) Temperature vi) Activation of adsorbent. How ..

Under 1 atmospheric pressure, oxygen condenses to a pale blue liquid, at -183 o C. When cooled to -218 o C, it freezes to a snow like solid. Remember : Both liquid and solid oxygen are paramagnetic substances. This means they posses a small positive magnetic affinity for a magnetic fie..

When the gas atoms in the discharge tube are at atmospheric pressure they collide with the electrons preventing them from reaching the anode. As no electrons reach the anode no current flows through the discharge tube. When the gas pressure is very low there are few ga..

The amount of all the noble gases put together (Helium, Neon, Argon, Krypton, Xenon and radon) is extremely low in air. These form only 0.94% of the volume of air and as such can be treated as negligible. These gases were found chemically inert (i.e. did not mix with o..