Water vapor/condensation question...?

Question

I'm given two pressure levels of the atmosphere and told that the air between them is cooling due to radiation at a rate that would be sufficient to cool the layer 1 degree C / day. I am then asked to figure out how many mm/day of rain must fall if the only heat source to this layer is the net condensation of liquid water.

Note: I'm not looking necessarily for a solution. Just a little guidance. :) Thanks!

Answer 1

It seems like you could figure the relative humidity based on the pressure, temperature, specific volume, etc. After that you could figure the volume of condensation on a per cubic meter basis. You would need a total volume to come up with the total mm/day. Hope that helps get you going on the right path to an answer. If not, you should re-post your question with additional information- I get the feeling you left something out.