Compressibility factor for hydrogen varies with pressure with positive slope at all pressure.
Even at low pressure, repulsive forces dominate for hydrogen gas.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Hide Solution
Verified By Collegedunia
The Correct Option isA
Solution and Explanation
In case of $H$, compressibility factor (Z) increases with pressure. At $273 K , Z>1$, which show that it is difficult to compress the gas as compared to ideal gas. In this case repulsive forces dominate.
Note : For ideal gases, $Z=1$
For real gases $Z \neq 1$
If $Z<1$, negative deviation and the gas is more compressible than expected.
If $Z>1$, positive deviation and the gas is less compressible than expected.