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A Vessel is filled with a gas at one atmospheric pressure .At the same temperature, the mass of that gas is increased by 25% the pressure of gas in the vessel is

a
0.5 atm
b
0.75 atm
c
1 atm
d
1.25 atm

detailed solution

Correct option is D

T= Constant; V= Constant; P;= 1atm; m1 =m and m2=m+14m We Know thatPV = μRTP1P2=m1m2⇒1P2=mm+14m 1P2=45⇒p2 =54=1.25 atm ⇒P2= 1.25 atm

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