Two rigid adiabatic vessel A and B which initially ,contain two gases at different temperature are connected by pipe line with value of negligible volume .The vessel A contain 2 moles Ne gas `(C_(p.m)=(5)/(2)R)` at 300 K, vessel B contain 3 moles of `SO_(2) gas (C_(p.m)=4 R)` at 400 K .
The volume of the A and B vessel is 4 and 6 litre repectively .
The final total pressue (in atm ) when valve is opened and 12 kcal heat supplied throught it to vessels .
[Use :` R =2 cal //"mole" K "and" R=0.08 L . atm//"mole"` K as
per desire ]

Options

A. `3.5 atm`
B. `7 atm `
C. `35 atm`
D. `70 atm`

Answer

C