A closed vessel is maintained at a constant temperture. It is first evacuated and then vapour is injected it continuously. The pressure of the vapour in the vessel

Options

A. increases continuously
B. first increases and then remains constant
C. first increase and then remains constant
D. None of above

Answer

C

Explanation

Total pressure inside the container is given as
`" " p=1/3(mN)/Vv^(2)rmm rArr p prop m`
(when, volume and temperature are constant) From Eq.(i),