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A 10 L flask at 298 K contains a gaseous...

A `10 L` flask at `298 K` contains a gaseous mixture of `CO` and `CO_(2)` at a total pressure of `2.0 "bar"` if `0.20 ` mole of `CO` is present, find its partial pressure and also that of `CO_(2)`.

Text Solution

Verified by Experts

According to Dalton.s law of partial pressure
`p_("total")=p_((CO))+p_((CO_(2))="2.0 bar"`
`"Partial pressure of CO, "p_((CO))=(n(CO)RT)/(V)`
`=(("2.0 mol")xx("0.083 bar dm"^(3)"K"^(-1)"mol"^(-1))xx("298 K"))/("10 dm"^(3))`
`="0.495 bar."`
`"Partial pressure of "CO_(2)`,
`p_((CO_(2)))=p_("total")-p_((CO))`
`=2.0-0.495="1.505 bar."`
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