A) 1 atm
B) 4 atm
C) 15 atm
D) 7.5 atm
Correct Answer: D
Solution :
If the tanks balances the mass of air must be equal to the mass of helium. The pressure of air is 1 atm. Hence the pressure of helium should 7.5 atm to keep mass constant. As the density of air is nearly 7.5 times of the helium.You need to login to perform this action.
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