446 F is exactly 230 C ( Hmmm ) so consulting the PV diagram for water, a liquid vapor interface at that temperature would require a pressure of about 4 MPa. Noting that 100 C requires 0.1 MPa, we see that this is about 40 atmospheres. Then at 33 feet per atmosphere, that's 1320 feet of ocean depth on earth.
So... it might actually be possible on a world that is 2.7 times bigger than Earth. Of course the vast majority of that water is probably going to be in steam clouds as thick as the clouds on Venus. lol.
12 posted on 02/25/2012 4:54:02 PM PST by GeronL
(The Right to Life came before the Right to Pursue Happiness)
