Dominance of strong repulsive forces among the molecules of the gas (`Z =` compressibility factor)

Options

A. depends on `Z` and is indicated by `Z = 1`
B. depends on `Z` and is indicated by `Z gt 1`
C. depends on `Z` and is indicated by `Z lt 1`
D. is independent on `Z`

Answer

B

Explanation

`Z gt 1` implies that the gas is less compressible than the ideal gas , i.e., when we compress the gas , the decrease in volume is less than expected. This is because of the dominance of strong repulsive forces between the molecules preventing them to come closer.