Hich has more mass, a 2-kg fluffy pillow or a 3-kg small piece of iron? more volume? why are your answers different?

2kg fluffy pillow

Explanation:

The answers must be different. To accurately calculate the entity with the larger volume, we have to get a relationship that brings volume and mass together.

This particular relationship manifests in the following mathematical equation:

Volume = Mass/density

Or rather Mass = density * volume

Hence, we can see that to get the appropriate volume from the mass, we need to consider the density of each.

Iron is a metal, it is relatively denser than the elements in the fluffy pillow. Hence, although it has the larger mass here, the density part would make it as such that the boiling would be smaller than that of the fluffy pillow which obviously has a meager density due to its compositional material.

Hence, we can conclude that different substances even with similar weights would occupy different volumes because, different substances have different densities

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