1. Tardigrade
  2. Question
  3. Chemistry
  4. Determine how many of the following statements are true at very high pressure for a real gas: (a) Compressibility factor is greater than text1 text. (b) Compressibility factor varies linearly with pressure. (c) Molar volume occupied by gas is more as compared to ideal gas at similar pressure and temperature. (d) Gas is less compressible as compare to ideal gas. (e) Compressibility factor is given by Z =1+( Pb / RT ) .

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Q. Determine how many of the following statements are true at very high pressure for a real gas:
$\left(a\right)$ Compressibility factor is greater than $\text{1} \text{.}$
$\left(b\right)$ Compressibility factor varies linearly with pressure.
$\left(c\right)$ Molar volume occupied by gas is more as compared to ideal gas at similar pressure and temperature.
$\left(d\right)$ Gas is less compressible as compare to ideal gas.
$\left(e\right)$ Compressibility factor is given by $Z =1+\frac{ Pb }{ RT } .$

NTA AbhyasNTA Abhyas 2022

Solution:

At high pressure $Z \, > \, 1$ i.e. repulsive forces are relatively dominant, so gas is less compressible.
At high pressure, $a \cong 0$.