A 100 mL flask contained `H_(2)` at 200 Torr, and a 200 mL flask contained He at 100 Torr. The two flask were then connected so that each gas filled t
A 100 mL flask contained `H_(2)` at 200 Torr, and a 200 mL flask contained He at 100 Torr. The two flask were then connected so that each gas filled their combined volume. Assuming no change in temperature,total pressure is
A. 300 Torr
B. 66.66 Torr
C. 150 Torr
D. 133.33 Torr
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Correct Answer - D
`n_(H2)=(pV)/(RT)=(20000)/(RT)rArrn_(He)=(pV)/(RT)=(20000)/(RT)`
`:." "n_(H2)+n_(He)=(40000)/(RT)`
Total volume = 300 mL
`p=(n)/(V)RT=(40000RT)/(RTxx300)=(400)/(3)=133.33" Torr"`
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