The volumes of two vessels are 5litre and 3litre respectively. Air is filled in them at pressure of 3 atm and 5 atm respectively. At constant temperature if they are connected through a tube, the resultant pressure will be
A
4.25atm
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B
4atm
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C
3.75atm
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D
3.5atm
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Solution
The correct option is C3.75atm Given V2=5litre,V2=3litre P1=3atm,P2=5atm
By ideal gas equation PV=nRT
As T is constant
so, PV= constant
Therefore (PV)i=(PV)f PV=P1V1+P2V2 P(8)=5×3+3×5 P=308=3.75atmos
Hence, option (B) is correct.