Q.

Two identical cylinders at same temperature contain Helium at 2.5 atm and Argon at 1 atm respectively. What will be the pressure if both the gases are filled in one of the cylinders ?

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a

3.5 atm

b

2.5 atm

c

 1.2 atm   

d

 1.5 atm

answer is C.

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Detailed Solution

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Total number of moles remains conserved.

Temperature of the gas remains unchanged.

n = n1 + n2

PVRT=P1VRT+P2VRT

P=P1+P2=(2.5+1) atm 

P=3.5atm

 

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Two identical cylinders at same temperature contain Helium at 2.5 atm and Argon at 1 atm respectively. What will be the pressure if both the gases are filled in one of the cylinders ?