I'm late to this, but I'll respond anyway, @
exwhyzee and @
Rai
I don't know enough about physics or chemistry, let alone HVAC specifically, to give you a definite answer, especially when you didn't provide a definite explanation of what the question is. I could PROBABLY give you the answer you want, if it's just algebra, but the real question is why you think it's a good idea to ask people on LB for math help when there are so many other, better resources out there, even reddit or something.