Question

A closed tank is first evacuated and then connected
to a 50 L cylinder containing compressed nitrogen
gas. The gas pressure in the cylinder originally at
20.5 bar falls to 11.2 bar after it is connected to the
evacuated tank. Calculate the volume of the tank.








please answer it immediately ​

Answer 1

Answer:

Explanation:

Let the volume of the tank = V litres

As number of moles of gas in the cylinder before

and after connecting it to the tank will be same,

Moles of N2 before connected = Moles of N2 after connecting to tank

p1V1RT1=p2V2RT2

p1=20.5 bar, p2=11.2 bar V1=50 litres,

V2=(50+V) litres

T1=T2=T (say)

20.5×50RT=11.2×(50+V)RT

11.2V=465

or V=46511.2=41.5L.