rotor911 Posted February 1, 2006 Report Share Posted February 1, 2006 At standard temperature and pressure ammonia is a gas So why Liquid Ammonia 52% on a world when the pmap on another world with comparable temperature and gravity gives Liquid Gases 38% ? Just to deprive me of the "familiar terrain" bonus? Quote Link to comment Share on other sites More sharing options...
Hughestrog Posted February 1, 2006 Report Share Posted February 1, 2006 Well, ammonia melts at -74oC (~199K) and boils at -30.9oC (~242K), not taking into account dissolved salts, etc. I admit, I haven't looked into the gravity differences and what effect that this would have, but it probably would have some effect. Hot air (as in the ballon) has a density of 0.8 kg/m3 (c.f. air @1.0 Kg/m3), which is sufficient to raise the ballon. OK, yes, you do need alot of hot air. Also the dissolved salts and particulates would also have an effect. Ofcourse, I just take it as fluff, and just look at the temp, grav and tilt values. Quote Link to comment Share on other sites More sharing options...
Octus Imperium Posted February 1, 2006 Report Share Posted February 1, 2006 Ofcourse, I just take it as fluff, and just look at the temp, grav and tilt values. <{POST_SNAPBACK}> Tilt, as in pinball? Axial tilt does not seem to be a major player in my expeience. Grav has an impact, but temp, oceans and atmoshpere are the killers. Octus Quote Link to comment Share on other sites More sharing options...
ali-t-akua Posted February 1, 2006 Report Share Posted February 1, 2006 Well, ammonia melts at -74oC (~199K) and boils at -30.9oC (~242K), not taking into account dissolved salts, etc. I admit, I haven't looked into the gravity differences and what effect that this would have, but it probably would have some effect. Hot air (as in the ballon) has a density of 0.8 kg/m3 (c.f. air @1.0 Kg/m3), which is sufficient to raise the ballon. OK, yes, you do need alot of hot air. Also the dissolved salts and particulates would also have an effect. Ofcourse, I just take it as fluff, and just look at the temp, grav and tilt values. <{POST_SNAPBACK}> Gravity would have an indirect effect as it affects atmospheric pressure. Pressure is one of the determinants in freezing and boiling points. By the way, I would not apply standard physics as we understand it to SN:ROTE. I realized that when on my HW, the gas that we normally breathe is a solid at temperatures well above the average temperature of my HW. As my HW has a gravitational field strength well above earth's I can either deduce that my race eats its atmosphere or that the laws of physics dont apply. I determined the latter to be the correct answer. Quote Link to comment Share on other sites More sharing options...
T'Lariss Posted February 2, 2006 Report Share Posted February 2, 2006 Well, ammonia melts at -74oC (~199K) and boils at -30.9oC (~242K), not taking into account dissolved salts, etc. I admit, I haven't looked into the gravity differences and what effect that this would have, but it probably would have some effect. Hot air (as in the ballon) has a density of 0.8 kg/m3 (c.f. air @1.0 Kg/m3), which is sufficient to raise the ballon. OK, yes, you do need alot of hot air. Also the dissolved salts and particulates would also have an effect. Ofcourse, I just take it as fluff, and just look at the temp, grav and tilt values. <{POST_SNAPBACK}> Gravity would have an indirect effect as it affects atmospheric pressure. Pressure is one of the determinants in freezing and boiling points. By the way, I would not apply standard physics as we understand it to SN:ROTE. I realized that when on my HW, the gas that we normally breathe is a solid at temperatures well above the average temperature of my HW. As my HW has a gravitational field strength well above earth's I can either deduce that my race eats its atmosphere or that the laws of physics dont apply. I determined the latter to be the correct answer. <{POST_SNAPBACK}> No No No!. the laws of physics apply perfectly. It just that SN;ROTE operates under different physical laws that the world we live in. Here in the SN Universe light has mass and the gravitational constant is different. Quote Link to comment Share on other sites More sharing options...
Hughestrog Posted February 2, 2006 Report Share Posted February 2, 2006 [Here in the SN Universe light has mass and the gravitational constant is different. <{POST_SNAPBACK}> I like that! Quote Link to comment Share on other sites More sharing options...
Lord Xaar Posted February 4, 2006 Report Share Posted February 4, 2006 [Here in the SN Universe light has mass and the gravitational constant is different. <{POST_SNAPBACK}> I like that! <{POST_SNAPBACK}> Hydrogen would also need to be much more massive, I think. The one that gets me are the small moons with Hydrogen atmosphere -- small bodies could never hold a substantial amount of Hydrogen. Beings living there have very efficient "lungs" Though I have to say it would be better there than on the Chlorine atmosphere, Liquid Ammonia ocean worlds (or vice versa) we have seen... -LX Quote Link to comment Share on other sites More sharing options...
ali-t-akua Posted February 4, 2006 Report Share Posted February 4, 2006 [Here in the SN Universe light has mass and the gravitational constant is different. <{POST_SNAPBACK}> I like that! <{POST_SNAPBACK}> Hydrogen would also need to be much more massive, I think. The one that gets me are the small moons with Hydrogen atmosphere -- small bodies could never hold a substantial amount of Hydrogen. Beings living there have very efficient "lungs" Though I have to say it would be better there than on the Chlorine atmosphere, Liquid Ammonia ocean worlds (or vice versa) we have seen... -LX <{POST_SNAPBACK}> I would think a Fluorine or Chlorine atmosphere with a Liquid Hydrogen ocean would be an extremely challenging environment Quote Link to comment Share on other sites More sharing options...
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