a) If a sample of gas occupies 7.8 L at 325 C what will be itsvolume at 25 C is
ID: 681731 • Letter: A
Question
a) If a sample of gas occupies 7.8 L at 325 C what will be itsvolume at 25 C is pressure stays constant? b) A gas has a pressure of 7.9 kPa at 560 K what will be thepressure at 210 K if the volume stays constant? c)The pressure changes from 100 kPa to 40 kPa if thetemperature is constant what is the new volume? a) If a sample of gas occupies 7.8 L at 325 C what will be itsvolume at 25 C is pressure stays constant? b) A gas has a pressure of 7.9 kPa at 560 K what will be thepressure at 210 K if the volume stays constant? c)The pressure changes from 100 kPa to 40 kPa if thetemperature is constant what is the new volume?Explanation / Answer
A.) If a sample of gas occupies 7.8 L at 325 C what will beits volume at 25 C is pressure stays constant? Charles Law:V1/T1 = V2/T2 Always convert Celsius to Kelvins! --> C+273=K 7.8/598=V/303 solve for Volume
V=3.95L B.) A gas has a pressure of 7.9 kPa at 560 K what will be thepressure at 210 K if the volume stays constant Lussac's Law P1/T1=P2/T2 7.9/(560) = P/210 Solve for Pressure:
P=2.965 kPa C.) 100 kPa to 40 kPa if the temperature is constant what isthe new volume? Boyle's Law P1V1=P2V2 (100)(1)=(40)(V) Solve for volume: V=2.5L HOPE THIS HELPS! AND PLEASE DON'T FORGET TO RATE,THANKS! HOPE THIS HELPS! AND PLEASE DON'T FORGET TO RATE,THANKS!
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