Question

Define following terms-
i. Rigidity
ii. Compressibility
iii. Density

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Answer 1

Explanation:

1. inability to be to bent or be forced out of shape.
2. In thermodynamics and fluid mechanics, compressibility is a measure of the relative volume change of a fluid or solid as a response to a pressure change. In its simple form, the compressibility β may be expressed as , where V is volume and p is pressure.
3. Density is a measurement that compares the amount of matter an object has to its volume. An object with much matter in a certain volume has high density. An object with little matter in the same amount of volume has a low density. Density is found by dividing the mass of an object by its volume.

Answer 2

Rigidity: whether the object is in solid liquid or gaseous form

compreebility: that we can compress the object or not like solids can not be compressed

density: the density of molecules in the object

solid objects are more denser than liquid.

and liquid is more denser then gas