a definite amount of CO2 gas ocvupies a volume of 546 cm3 at STP find its volume at 15°c and 750 mm of Hg
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Given - STP conditions of pressure and temperature.
Volume at STP conditions - 546 cm³
Final Temperature - 15° C
Final pressure - 750 mm of Hg
Find - Final volume.
Solution - To find the final volume, formula used will be - P1V1/T1 = P2V2/T2.
In the formula, P1V1T1 represents initial pressure, volume and temperature and P2V2T2 represents final pressure, volume and temperature respectively.
P1 - 760 mm Hg
V1 - 546 ml
T1 - 273 K
P2 - 750 mm Hg
V2 - ?
T2 - 273 + 15 - 288 K
760*546/273 = 750*V2/288
V2 - 583.68 ml.
Hence, the final volume of gas is 583.68 ml.
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