At what temperature would the volume of a gas be 0.550 l if it had a volume of 0.432 l at –20.0 o c?

321.6 K

Explanation: Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

   (At constant pressure and number of moles)

where,

= initial volume of gas = 0.432 L

= final volume of gas = 0.550 L

= initial temperature of gas =

= final temperature of gas = ?

Now put all the given values in the above equation, we get the final pressure of gas.

Therefore, the final temperature will be 321.6 K.

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