Physical Chemistry: Thermodynamics, Structure, and Change

Published by W. H. Freeman
ISBN 10: 1429290196
ISBN 13: 978-1-42929-019-7

Foundations - Topic A - Matter - Exercises - Page 23: A.21(a)

Answer

P H2 = 4.56 atm P N2 = 2.28 atm P total = 6.85 atm

Work Step by Step

the gas law : PV =nRT the gas law : Ptotal = (nH2+ nN2) RT / V P: is gas pressure ?? V: gas volume (10.0 dm3 = 10.0 L) R: gas constant (0.0821 L-atm / mole-K) T: gas temperature in Kelvin (278.15 PH2 = 4.56 atm PN2 = 2.28 atm Ptotal = (nH2+ nN2) RT / V = (2+1) × 0.0821 × 278.15 / 10 = 6.85 atm
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