Question

A vessel containing 10 litre of air at atmospheric pressure (760 mm of Hg) is connected with an evacuated 9 litre vessel The resultant air pressure will be
(A) 1440 mm of Hg
(B) 760 mm of Hg
(C) 400 mm of Ha
(D) 40 mm of Ho​

Answer 1

Answer:

pls refer this

Explanation:

Answer 2

Answer:

400mm of Hg

Explanation:

By using the formula p1v1 = p2v2