Question

Flask X contains 5 dm3 of helium at 12 kPa pressure and flask Y contains 10 dm3 of neon at 6 kPa
pressure.
If the flasks are connected at constant temperature, what is the final pressure?
A 8 kPa B 9 kPa C 10 kPa D 11 kPa
8 Use

Answer 1

\[P1V1=P2V2\]
\[(5\times12)+(6\times10)= P (5+10)\]
\[P=8kPa\]