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

Assertion. Compressibility factor for hydrogen varies with pressure wi

1.	Assertion. Compressibility factor for hydrogen varies with pressure with positiveslope at all pressures. Reason. Even at low pressures, repulsive forces dominate in hydrogen gas.
Answer» Solution :Assertion is correct as seen from the plot in Fig. 5.33 (a), PAGE 5/47. Reason is the correct explanation because for `H_(2)` at 273 K, `Z gt 1` which means that it is difficult to compress the gas as compared to ideal gas. This implies that repulsive FORCES dominate.