question_answer

A vessel containing \[0.1\,{{m}^{3}}\] of air at pressure of 76 cm of Hg is connected to an evacuated vessel of capacity 0.09 m3. The resultant air pressure is:

A)  20 cm of Hg       

B)         30 cm of Hg       

C)         40 cm of Hg       

D)         50 cm of Hg