NEET-XII-Chemistry
c2022 year:2022
- #43A `` 10.0 \,L `` flask contains `` 64\, g `` of oxygen at `` 27^{\circ} C `` . (Assume `` O _{2} `` gas is behaving ideally). The pressure inside the flask in bar is (Given `` R =0.0831 \,L\, bar\, K ^{-1} mol ^{-1} `` )
(A) `` 4.9 ``
(B) `` 2.5 ``
(C) `` 498.6 ``
(D) `` 49.8 ``digAnsr: AAns : `` V =10 L ``
`` W _{ O _{2}}=64 \,g ``
`` T =2{ }^{\circ} C ``
`` n _{ O _{2}}=2 ``
`` R =0.083 . L `` bar `` K ^{-1} \,mol ^{-1} ``
Ideal gas equation `` PV = nRT ``
`` P =\frac{2 \times 0.0831 \times 300}{10} ``
`` P =4.9 `` bar