A vessel of 120 mL capacity contains a certain amount of gas at `35 ^(@)C` and 1.2 bar pressure. The gas is transferred to another vessel of volume 180 mL at `35 ^(@)C.` What would be its pressure?

Explanation

`P_(1)=1.2 "bar", P_(2)=?`
`V_(1)=120 mL, V_(2)=180 mL`
`P_(1)V_(1)=P_(2)V_(2)`
`1.2xx120=P_(2)xx180`
or `P_(2)=(1.2xx120)/(180)=0.8 "bar"`