TS EAMCET Medical 2018 May 2 Shift 2 Paper

hi a mixture of 0.2 mole of N2 and 0.6 mole of O2 50% of N2 reacts to give NO according to equation N2(g)+O2(g) ⇌ 2NO(g) at a constant temperature when the reaction conducted in a closed vessel. Calculate the ratio of the initial to final volume of gases