1.

Assertion: Compressibility factor for hydrogen varies with pressure with positive slope at all pressures. Reason: Even at low pressures, repulsive forces dominate hydrogen gas.

Answer»

If both assertion and REASON are TRUE and the reason is correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
If the assertion and reason both are false

Solution :In case of `H_(2)`, compressibility factor increase with the pressure . At 273 K, `Z gt 1` which shows that it is difficult to compress the gas as compared to IDEAL gas. In this case repulsive FORCES dominate.


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