The compressibility factor `(Z)` of real gas is usually less than `1` at low temperature and low pressure because

Options

A. a is negligible while b is not
B. b is negligible while a is not
C. both a and b are negligible
D. neither a nor b are negligible

Answer

B

Explanation

`Z lt 1` means attraction forces are dominating `rArr a` is considerable, b can be negligible at low temperature and low pressure.