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P1V1/T1 = P2V2/T2

Change all temps to Kelvin. ( 38 C + 273.15 = 311.15 K and 25 C = 298.15 K )

(1 atm)(20 L)/(298.15 K) = (20 atm)(X L)/(311.15 K)

5963X = 6223

X = 1.0 Liters

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Q: How many liters would a 20 liter sample of gas at stp occupy if the pressure was changed to 20 atmospheres and the temperature was changed to 38 c?
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