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OldSpice OldSpice
wrote...
Posts: 6435
6 years ago
A sample of xenon gas at 786 mm Hg is cooled from 100.0 °C to 50.0 °C. If the volume remains constant, what is the final pressure?
A) 153 mm Hg
B) 393 mm Hg
C) 681 mm Hg
D) 908 mm Hg
E) 1570 mm Hg
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Answer accepted by topic starter
ElectricElectric
wrote...
Top Poster
Posts: 6431
6 years ago Edited: 2 weeks ago, bio_man
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C

Apply ideal gas law ratios

P = 786 mm Hg

T1 = 100 = 373 K

T2 = 50 = 323 K

then find P2

P1/T1 = P2/T2

P2 = T1/T2*P1

P2 = 323/373*786 = 680.63 mm Hg

P2 = 680.63 mm Hg
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