. 10g each of CH4 and O2 are kept in cylinders of same volume under same temperatures, give the pressure ratio of two gases. (a) 2 : 1 (b) 1 : 4 (c) 2 : 3 (d) 3 : 4 Kindly explain the above question and its answer Share with your friends Share 0 Vartika Jain answered this Dear Student, Moles =MassMolar massMoles of CH4(n1)=1016=0.625 molMoles of O2(n2)=1032=0.3125 molNow, PV=nRTor, Pn=RTVT and V are constants, soP1n1=P2n2or, P1P2=n1n2or, P1P2=0.6250.3125=2or, Ratio of pressures=2:1Hence, correct answer is (a) 1 View Full Answer