Saturday, August 28, 2010

Martian Dry Ice Craters


The following is a 3 phase water diagram with a 3 phase carbon dioxide diagram superimposed over the top: At moderate room temperatures (60F - 100F) carbon dioxide can build up to dozens of atmospheres of pressure (14.7 psi = 1 atm). Tire pressure is about 3 atmospheres or 40 psi, and most air compressors that pump tires can achieve about 15 atm or 180 psi. If an air compressor explodes that makes a big explosion, now consider how CO2 gas can build up to about 80 atmospheres of pressure before 2 phasing or beginning to liquidize (see chart above), an explosion of that magnitude would likely create "bomb" craters on Mars. Theoretically Mars past consisted of an exponential decay of such crater formations if it once was covered with dry ice.


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