Which of the following statement(s) is/are correct ?

Options

A. Surfacetension vanishes at critical point.
B. All the physical properties of liquid and gaseous state of a substance becomes identical at critical point.
C. For a gas there is no distanction between liquid and vapour state at critical point.
D. Easily liquefiable gases have higher Boyle's temperature while the gases difficult to liquefy have lower Boyle's temperature.

Answer

A, B, C, D

Explanation

Which of the following statement(s) is…………
`T_(a)uarr then T_(c )uarr`