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Standard X

Physics

Specific Heat Capacity

1L of oxygen ...

Question

$1 L$ of oxygen at a pressure of 1atm, and $2 L$ of nitrogen at a pressure of 0.5atm are introduced in the vessel of 1 litre capacity, without any change in temperature. The total pressure would be

1.5atm

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0.5atm.

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2.0atm.

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1.0atm.

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Solution

The correct option is C 2.0atm.
$P$ = $P_{1} + P_{2} + . . . . . . . . . . . .$
here 1 litre of oxygen at a pressure of 1atm, & 2 litre of nitrogen at a pressure of 5 atm are introduced in a vessel of 1 litre capacity.
So, $P = \frac{V_{1} P_{1} + P_{2} V_{2}}{Volume of vessel}$
$= \frac{1 \times 1 + 2 \times .5}{1}$ = $2 a t m$

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