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Standard XI

Chemistry

Dalton's Law of Partial Pressures

Find total pr...

Question

Find total pressure observed after opening the stopcock . [neglecting the volume of the tube connecting the two bulbs]

1.33 atm

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3 atm

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0.3 atm

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0.75 atm

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Solution

The correct option is A
1.33 atm

Total pressure P = $\frac{P_{1} V_{1} + P_{2} V_{2}}{V_{1} + V_{2}}$

$\Rightarrow \frac{0.1 \times 2 + 0.2 \times 1}{0.1 + 0.2} \Rightarrow \frac{0.2 + 0.2}{0.3} \Rightarrow \frac{4}{3} \Rightarrow 1.33 a t m$

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Find total pressure observed after opening the stopcock . [neglecting the volume of the tube connecting the two bulbs]

The correct option is A 1.33 atm Total pressure P = P1V1+P2V2V1+V2 ⇒0.1×2+0.2×10.1+0.2⇒0.2+0.20.3⇒43⇒1.33 atm

The correct option is A
1.33 atm

Total pressure P = $\frac{P_{1} V_{1} + P_{2} V_{2}}{V_{1} + V_{2}}$

$\Rightarrow \frac{0.1 \times 2 + 0.2 \times 1}{0.1 + 0.2} \Rightarrow \frac{0.2 + 0.2}{0.3} \Rightarrow \frac{4}{3} \Rightarrow 1.33 a t m$