Compressibility factor, Z, of a gas is given as Z=(pV)/(nRT)(i) What is the value of Z for an ideal gas ?For real gas what will be the effect on value of Z above Boyle.s temperature ?

Compressibility factor, Z, of a gas is given as Z=(pV)/(nRT)(i) What i

1.	Compressibility factor, Z, of a gas is given as Z=(pV)/(nRT)(i) What is the value of Z for an ideal gas ?For real gas what will be the effect on value of Z above Boyle.s temperature ?
Answer» Solution :(i) For ideal gas, compressibility factor, Z = 1. (II) Above Boyle.s temperature, real gases show positive deviation. So, `Z gt 1` Note : FOLLOWING important points come out from the compressibility factor, `Z=(PV)/(nRT)` (i) For ideal Z = 1 at all TEMPERATURES and PRESSURE because pV = nRT. (ii) At very low pressure all gases shown have `Z ~=1` and behave as ideal gas. (iii) At high pressure, all the gases have `Z gt 1` These are more difficult to compress. (iv) At intermediate pressures most gases have `Z lt 1`.