Will the Earth, atmosphere included, become bigger if it heats up?!?

Question

Like in PV/T= constant.

http://solospirit.wustl.edu/solospirit2/education/Science%20Side/pvt.html

Answer 1

Interesting idea.

One thing to remember is that if the atmosphere heats up it becomes more energetic. The faster moving molecules will exceed escape velocity and fly of into space.

This has effected our atmospheric composition in the past, not sure if it would mean that the atmosphere would stay the same size but become more concentrated with the heavy molecules. Too hot and the gases will evaporate away.

The earth itself is already pretty hot internally the heating would have to be very significant to make a difference

Answer 2

Good question. By the PV=nRT formula I would say yes. That Is V=nRT/P and lets see.If Temp goes up Volumen goes up. But you know what, in the system earth if T goes up more water will become from liquid to gas then n goes up and if n goes up V goes up also. What can make not to grow is Pressure. Since system earth is not in a close container and pressure is the result of the weight of the gases and gravity will not change may be that pressure remains. Complex system in which we live!

Answer 3

what kind of a heating up do u think the world is tooo big to expand by heating it is not a realistic thing. its expansion is negligible.

though it is an interesting thought :)