Question

A cylinder of 5 litres capacity, filled with air at NTP is connected with another evacuated cylinder of 30 litres of capacity. The resultant air pressure in both the cylinders will be

• A. 10.8 cm of Hg
• B. 14.9cm of Hg
• C. 21.8 cm of Hg
• D. 38.8 cm of Hg

Answer 1

Answer: (A)

10.8 cm of Hg

Answer 2

Given that

$\mathbf{3}$ of $3$ (Initial pressure at N.T.P.)

$3$, $V_{1}$, $V_{2}$

According to Boyle's law

$V_{1} > V_{2}$; $T = 0$

$V_{2}$⇒ $V_{1}$ of $V_{1}$