johndoefakeemailnoti johndoefakeemailnoti

14-04-2024
Chemistry

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Calculate the initial volume (in mL) at 0 oC of a sample of gas that is changed to 721 mL by cooling to -20 oC at constant pressure.

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jsimpson11000 jsimpson11000

14-04-2024

Answer:

Explanation:

P1V1/T1 = P2V2/T2 Looking for V1

V1 = P2V2/T2 * T1/P1 Temps must be in Kelvin

Since P1 = P2 , this becomes

V1 = V2/ T2 * T1

V1 = 721 / ( 273.15 -20) * ( 273.15 + 0) = 778 ml

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