Two flasks `A` and `B` have equal volume at `100 K` and `200 K` and have `4 atm` and `1 atm` pressures, respectively. The flasks `A` contains `H_(2)` gas and `B` contains `CH_(4)` gas. The collision diameter of `CH_(4)` is twice that of `H_(2)`.
(`i`) Which of the following is true about the mean free path `(lambda)` of the molecules?
(`a`) `lambda` of `H_(2)` is twice that of `CH_(4)`.
(`b`) `lambda` of `CH_(4)` is twice that of `H_(2)`.
(`c`) `lambda` of `H_(2)` is four times that of `CH_(4)`.
(`d`) `lambda` of `CH_(4)` is four times that `H_(2)`.
(`ii`) Which of the following is true about the viscosity of the gases?
(`a`) Viscosity of `H_(2)=2xx` viscosity of `CH_(4)`
(`b`) Viscosity of `H_(2)=3xx` viscosity of `CH_(4)`
(`c`) Viscosity of `H_(2)=` viscosity of `CH_(4)`
(`d`) Viscosity of `H_(2)=(1)/(2)xx` viscosity of `CH_(4)`

Answer

2