Question

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Answer 1

Charles's Law : It is defined as the volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

`V\propto T`

Boiling water bath Cool bath 1 Cool bath 2

Temperature (⁰C) 99 17 2

Temperature (K)(T) 273+99=372 273+17=290 273+2=275

Volume of water 0.0 27.0 34.0

in cool flask (mL)

Volume of water= 135.8 135.8 135.8

Air in flask (mL)

Volume of air 135.8 108.8 101.8

in cool flask (V)

`(V)/(T)`
`(135.8)/(372)=0.365`
`(108.8)/(290)=0.375`
`(101.8)/(275)=0.370`

The graph volume versus temperature for a gas is shown below.