An ideal gas expands in volume from 1- 10-3 to 1- 10-2 m3 at 300 K against a constant pressure of 1- 105Nm-2- The work done is -

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An ideal gas ...

Question

An ideal gas expands in volume from $1 \times 10^{- 3}$ to $1 \times 10^{- 2} m^{3}$ at 300 K against a constant pressure of $1 \times 10^{5} N m^{- 2}$ . The work done is :

270

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- 900

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- 900

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900

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Solution

The correct option is C $- 900$ J
work done $= - P Δ V$ $= - 10^{5} (10^{- 2} - 10^{- 3}) N - m$
$= - (1000 - 100) N - m = - 900 J$

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An ideal gas expands in volume from 1×10−3 to 1×10−2 m3 at 300 K against a constant pressure of 1×105Nm−2. The work done is :

The correct option is C −900 Jwork done =−PΔV =−105(10−2−10−3)N−m=−(1000−100)N−m=−900 J

An ideal gas expands in volume from $1 \times 10^{- 3}$ to $1 \times 10^{- 2} m^{3}$ at 300 K against a constant pressure of $1 \times 10^{5} N m^{- 2}$ . The work done is :

The correct option is C $- 900$ J
work done $= - P Δ V$ $= - 10^{5} (10^{- 2} - 10^{- 3}) N - m$
$= - (1000 - 100) N - m = - 900 J$