For the same mass of two different materials the volume is?
Answers
Answer:
It depends how you measure the volume and how “same” the materials are and on outside pressures.
A perfect solid sphere of say iron would have a smaller volume than a hollow sphere with a 2cm wall, if you use it's outer dimensions. But the amount of material would be the same so it is the same volume of iron.
A given mass of air in a balloon would have the same volume as another unless one is heated or chilled. Or placed underwater. Heat expands the gases cold contracts them, and the pressure of the water would squeeze the air molecules closer together. Same with liquified air same mass much lesser volume.
Water and heavy water are basically the same on a molecular level but when you look at the atoms one is heavier because of the extra neutron. So the heavy water would take up less volume for the same mass.
If you are measuring two identical materials at the same temperature and pressure they will have the same volumes.
We can make things look like they have more volume (hollow sphere) but if you melted both spheres down they would fill the same amount of space.
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