The total pressure(atm) in the chamber is

83.14atm

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831.4atm

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8.21atm

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None

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Solution

The correct option is C 8.21atm
Total number of moles $= 0.5 + 0.5 = 1$
The ideal gas equation is $P V = n R T$
$P \times 7 = 1 \times 0.0821 \times 700$
The total pressure is $P = 8.21 a t m$ .

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