MEDC basically means the country have education, good water supply,health care and high transportation. While LEDC means the county are very less education, but it doesnt mean they have no education. It means they have but less.
Ethane (/ËÉÎ¸eÉªn/ or /ËiËÎ¸eÉªn/) is an organic chemical compound with chemical formula C 2 H 6. At standard temperature and pressure, ethane is a colorless, odorless gas.Ethane is isolated on an industrial scale from natural gas, and as a byproduct of petroleum refining.Its chief use is as petrochemical feedstock for ethylene production.lthough ethane is a greenhouse gas, it is much less abundant than methane and also less efficient relative to mass. It has also been detected as a trace component in the atmospheres of all four giant planets, and in the atmosphere of Saturn 's moon Titan.
Not only is the staggered conformation morestable than the eclipsed, it is the most stable of all of the conformations; the eclipsed isthe least stable. Figure 3.4 shows how the potential energy of ethane changes for a 360Â°rotation about the carbonâcarbon bond.ection 3.1 The most stable conformation of ethane is the staggeredconformation.It is approximately 12 kJ/mol (3 kcal/mol) more stable than the eclipsed,which is the least stable conformation.