What is meant by compressibility factor of gases? How does its value deviate from that
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The compresibility factor is the ratio of PV and nRT.
Mathematically-
Z = PV/nR T
☆The value of compresibility factors decides whether a gas is compressible or not.
If z=1, then PV=nRT. So gas is ideal.
If z>1, then PV>nRT. So at high pressure and low temperature. Hence gases can be compressed.
If z <1 then PV<nRT so at low pressure and high temperature. Hence gas can't be compressed.
Mathematically-
Z = PV/nR T
☆The value of compresibility factors decides whether a gas is compressible or not.
If z=1, then PV=nRT. So gas is ideal.
If z>1, then PV>nRT. So at high pressure and low temperature. Hence gases can be compressed.
If z <1 then PV<nRT so at low pressure and high temperature. Hence gas can't be compressed.
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