conditions of liquefaction of gases

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 ..

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..

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 these factors affect adsorption are discussed in the..

Noble Gases - 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 ..

Oxygen Transport - Oxygen is transported in a combined state. The haemoglobin pigment (Hb) has an affinity for oxygen. In the lungs, it combines with oxygen and forms HbO 2 , oxyhaemoglobi..

Ideal and Real Gases - An ideal gas is one, which obeys the general gas equation of PV = nRT and other gas laws at all temperatures and pressures. A real gas, does not obey the general gas equation and other gas laws at all conditions of temperature and pressu..

Group 18 Elements (Noble Gases) - Introduction - The elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are grouped together in Group 18 of the Periodic Table. All of these are gaseous under ordinary conditions of temperature and pressure. The l..

The elements helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn) are grouped together in Group 18 of the Periodic Table. All of these are gaseous under ordinary conditions of temperature and pressure. The last number of the group, radon is obtained from radioactive..

. Among them, activated carbon is the most common adsorbent for gases which are easily liquefied. Activated carbon is used in gas masks to adsorb poisonous gases such as methane (CH 4 ). Activated carbon is prepared from a variety of raw materials including wood, lignite, coal, ..