Question

Two identical cylinders contain helium at 2.5 atmosphere and argon at one atmosphere respectively. If both the gases are filled in one of the cylinders, the pressure would be

• A. 3.5 atm
• B. 1.75 atm
• C. 1.50 atm
• D. 1 atm

Answer 1

The correct option is A

3.5 atm

${\text{P}}_{\text{total}}={\text{P}}_1+{\text{P}}_2$

$=1+2.5$

$=3.5\text{atm}$