1.

One litre of gas A at 2 atm pressure at 27^(@)C and two litres of gas B at 3 atm pressue at 127^(@)C are mixed in a 4 litre vessel. The temperature of the mixture is maintained at 327^(@)C. What is the total pressure of the gaseous mixture?

Answer»

3.93 atm
3.25 atm
4.25 atm
6.25 atm

Solution :`(P_(A)V_(A))/(T_(A))+(P_(B)V_(B))/(T_(B))=(P_("MIX")V_("mix"))/(T_("mix"))`
`(2XX1)/300+(3xx2)/400=(P_("mix")xx4)/600implies(8+18)/1200=(4P_("mix"))/600`
`P_("mix")=(26xx600)/(4xx1200)=3.25` atm


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