A cylinder of compressed He originally has a pressure of 20 atm and a volume 10 L at a temperature of 25°C. It is used to fill 10, 1 L balloons at a pressure of 0.99 atm at 25°C. After filling the balloons what is the pressure in the tank?
A) 12.0 atm
B) 17.2 atm
C) 18.0 atm
D) 19.0 atm
E) 19.8 atm
Correct Answer:
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