Question

the volume of room filled with air measures 41.4 m³ . if air teprature is 27 celcius and pressure 1 atm . find no. of molecules with respect to air

Answer 1

Suppose atT=27∘C=300KT=27∘C=300KT1=37∘C=310KT1=37∘C=310KV = 1 litreV1=?V1=?At constant pressure = VT=V1T1VT=V1T1⇒1300=V1310⇒1300=V1310⇒V1=310300⇒V1=310300⇒1.0333litre⇒1.0333litreSince capacity of flask is 1 litreVolume of air escaped out = 1.0333 - 1⇒⇒ 0.033 litre⇒⇒ 33.3 mLHence answer is (C)