Explain why solids are the least compressible | vedclass

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Question

(A) The bulk modulus $(B)$ is defined as the ratio of volumetric stress to volumetric strain: $B = -\Delta P / (\Delta V / V)$.Compressibility $(K)$ i

Vedclass · Accepted Answer

Solids have high bulk modulus,gases have low bulk modulus.

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(A) The bulk modulus $(B)$ is defined as the ratio of volumetric stress to volumetric strain: $B = -\Delta P / (\Delta V / V)$.Compressibility $(K)$ is defined as the reciprocal of the bulk modulus: $K = 1 / B$.For solids,the interatomic forces are very strong,making them very difficult to compress. Thus,solids have a very high bulk modulus $(B)$,which results in a very low compressibility $(K)$.For gases,the interatomic forces are negligible,making them very easy to compress. Thus,gases have a very low bulk modulus $(B)$,which results in a very high compressibility $(K)$.Therefore,solids are the least compressible and gases are the most compressible.

Explain why solids are the least compressible and gases are the most compressible based on the bulk modulus.

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