Things expand when they get warm. We use the term Thermal expansion. research this for liquids, you might even peek at gases too.
So with that, you'll need to understand compressibility, can you say compressibility. We use bulk modulus sometimes to mean compressibility of liquids. look it up.
Now, mass balance. If we put a fixed mass in the container, it must always be there right? But when we heat it up, the mass expands, so same mas larger volume, what happens, I'll give you this equation
density = Mass/volume
so we can compress the liquid by adding pressure. see whats next.....
Only if there is no room to expand, as in my gaden hose's pipe this last winter. If the vessel where the liquid is contained does not expand at the same rate and has a moving part, like a piston, it might move it. Unless the restriction to move is greater than the strength of the vessel walls.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>
I think my question was misunderstood. If I have a liquid (lets say mercury) in a 1x1x2 container filled up half way and I put something on top of the mercury as the temperature rises a given amount, with how much force will the mercury push this object and how high?
The pressure exerted on the piston (plus any added weight) will never be more than the weight of the piston divided by the area. It's simple statics. The force exteded on the pistion = piston weight plus any weight added to the piston. I am assuming zero resistance to piston movement due to a sealing mechanism.
Fe de erratas on my last post... water expands when it FREEZES!! But well, the effect is similar.
MrMax99, if you read Joe's and Dcasto's comments you have your answer. Both for actual and potential forces. You should be able to deduce anything else you might need from here.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying ” Damn that was fun!” - Unknown>>
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