The correct option is C 93.6 g
Let the weight of methane (CH4) be Wgm.
Molecular mass of methane (CH4)=16
Volume, (V)=9L
Temperature, (T)=27℃=(273+27)K=300K
Pressure, (P)=16 atm
No. of moles, (n)=wt.Mol. wt.=W16
R=0.082Latmmol−1K−1
Aplying ideal gas equation, we have
PV=nRT
⇒16×9=W16×0.082×300
⇒W16=14424.6
⇒W=16×5.85
⇒W=93.6g
Hence, the weight of methne is 93.6 g.