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Forum » SpaceEngine » General Discussions » Chemistry Questions - Pressure and Composition. (Totally Interesting I swear.)
Chemistry Questions - Pressure and Composition.
GoogolplexbyteDate: Monday, 16.07.2012, 15:26 | Message # 1
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Questions;
1. Do planets with liquid water take into account the fact that the melting & boiling point change dependent on the atmospheric pressure? i.e. on a planet with 2 atm of pressure the boiling point would be 120C rather than 100C. Note: Waters freezing point drops negligibly with increased pressure, dropping to a minimum of about -20C at about 2500atm. Useful diagram.

2. Do the stars, planets, & atmospheres have a chemical composition? If so what determines them? I ask this mainly because of carbon planets which form instead of silicate planets in carbon-rich oxygen-poor environments which may be more common than the reverse in which our planet formed and was wondering how the likelihood of life on carbon planets is determined seeing as no model for biogenesis here exists that I am aware of.

3. Are Ocean planets neccesarily composed of entirely water? Are there water-ammonia mix ocean planets? Pure Ammonia ocean planets? I ask this as the amount of ammonia on the ocean planets would increase the distance it could be from the star before freezing over. Note: Venus is technically covered in a deep ocean of supercritical fluid CO2 due to immense pressure.
 
Forum » SpaceEngine » General Discussions » Chemistry Questions - Pressure and Composition. (Totally Interesting I swear.)
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