An ideal gas expands in volume from 1 × 10 − 3 to 1 × 10 − 2 m 3 at 300 K against a constant pressure of 1 × 10 5 N m − 2 . The work done is Options: A . &nbsp270 kJ B . &nbsp−270 kJ C . &nbsp−900 J D . &nbsp900 kJ

Answer: Option C : C w = − P Δ V = − 10 5 ( 1 × 10 − 2 − 1 × 10 − 3 ) = − 900 J

An ideal gas expands in volume from 1 × 10−3 to 1 &#x

Question

An ideal gas expands in volume from

1 \times 10^{- 3}

1 \times 10^{- 2} m^{3}

300 K

against a constant pressure of

1 \times 10^{5} N m^{- 2}

. The work done is

Options:

A . 270 kJ

B . −270 kJ

C . −900 J

D . 900 kJ

Answer: Option C
:
C

w = - P Δ V = - 10^{5} (1 \times 10^{- 2} - 1 \times 10^{- 3})

- 900 J

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