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 400 cm3 of oxygen at 27oC were cooled to -3oC without change in pressure. The contraction in volume will be

  • Option 1)

    40 cm3

  • Option 2)

    30 cm3

  • Option 3)

    44.4 cm3

  • Option 4)

    360 cm3

 

Answers (1)

As we learnt in 

Gay Lussac’s Law -

Pressure -Temperature Relationship

- wherein

\frac{P_{1}}{T_{1}}= \frac{P_{2}}{T_{2}}

 

V_{2}= \frac{T_{2}}{T_{1}}V_{1}= \frac{270^{\circ}K}{300^{\circ}K}400cm^{3}= 360cm^{3}

contraction = V_{1}-V_{2}= 400-360= 40cm^{3}


Option 1)

40 cm3

Correct

Option 2)

30 cm3

Incorrect

Option 3)

44.4 cm3

Incorrect

Option 4)

360 cm3

Incorrect

Posted by

Vakul

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