Question

A vessel of volume 0.1 m² containing air at a pressure of
76 cm of Hg is connected to an evacuated vessel of capacity
0.09 m. What is the resultant air pressure if temperature is
assumed to remain constant?
(a) 40 cm of Hg (b) 45 cm of Hg
(c) 52 cm of Hg (d) 76 cm of Hg​

Answer 1

sorry I don't know the answer hope someone help you

Answer 2

The resultant air pressure if temperature is  assumed to remain constant is 40cm of Hg-

• Initial pressure, P1 = 76cm of Hg
• Final pressure, P2 = xcm of Hg
• Volume of container initially, V1 = 0.1m³ = 100000cm³
• Final volume after evacuation vessel connected, V2 = 100000cm³ + 90000cm³
• Using Boyle's law, P1V1=P2V2
• P2 = 100000/190000 × 76
• P2 = 40cm of Hg
• Therefore, the final pressure in apparatus = 40cm of Hg, hence option A