Monday, September 7, 2009

Part 5 - The Beginning of Chemistry

So, living on the surface of the earth, belies what's taking place far below. Just like life itself. Something so obvious in our daily lives may turn out totally different when viewed from a broader perspective.

The earth at this stage was still very hot and highly pressurised. In its crust & in between the crust and the molten core, atoms in the form of gases were trapped, such as carbon, hydrogen, oxygen and nitrogen. When these gases travelled through space, they had remained separate, but now they're forced together in a closed environment to form new relationships. Once again, the environment determines what can take place. So the gases combine into new relationships with other gases, eg, instead of hydrogen and oxygen gas existing as separate elements, they now combine to form water vapour - two atoms of hydrogen linking up with one atom of oxygen =
H20. The other gases present, carbon (C), nitrogen (N) also formed simple molecules, ammonia (NH3), methane (CH4). This is the beginning of CHEMISTRY.

These four gases, carbon, hydrogen, nitrogen, oxygen and their compounds such as water, ammonia and methane were the main components of our planet's early atmosphere and greatly changed the surface of the earth. Much of the atmosphere was water vapour and this caused torrential rains to fall onto the colling but still vey hot surface of earth. The water would fall, only to evaporate again and this went on for millions of years. This rain contained various other chemical compounds including newly formed acids and through erosion and corrosion, some of the surface rock began to break up and the water was washed down to lower lying areas, forming seas. The early seas were nothing like what we have today - it was thick, with various chemical compounds and had no life in them whatsoever. And certainly nowhere near as clear as the seas of today.


So you see how life began through laws of physics and moved on to chemistry. They're not separate but part of the same process.


Stay tuned for more development.

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