Question

(5) 1.5 dm of dry nitrogen is collected at a temperature of 27°C and a pressure of 740mm of Hg. Find the volume of gas at S.T.P [ Standard temperature = 273K / Standard pressure= 760mm of Hg]​

Answer 1

Answer:

V1=700 mlP1=1 atm=760 mm HgT1=298 K            V2=?P2=400 mm HgT1=288 K

Here number of moles is constant.

∴T1P1V1=T2P2V2V2=T1×P2P1×V1×T2=298×400760×700×288=1285.37 ml

∴ Volume occupied by gas is 1285.37 ml.