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Please solve it\nTo an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mol of He and 1 mol of an unknown compound(vapour pressure=0.68 atm at 0 C) are introduced.Considering the ideal gas behaviour the total volume of the gases al 0C is Ans is 7ltr but it os not coming

ashu , 10 Years ago
Grade 11
anser 1 Answers
Nirmal Singh.

Last Activity: 10 Years ago

Let unknown is X,
PHe = Ptotal - Px = (1-0.68) atm = 0.32 atm
Now PHe = n He (RT/V)
V = n He (RT/PHe ) = 0.1x0.082x273) / 0.32 = 7 litre
Regards,
Nirmal Singh
Askiitians faculty

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