Be sure to answer all parts. For reactions in condensed phases (liquids and solids), the difference between AH and AU is usually quite small. This statement holds for reactions carried out under atmospheric conditions. For certain geochemical processes, however, the external pressure may be so great that AH and AU can differ by a significant amount. A well-known example is the slow conversion of graphite to diamond under Earth's surface. Calculate AH- AU for the conversion of 1 mole of graphite to 1 mole of diamond at a pressure of 4.00 x 10* atm. The densities of graphite and diamond are 2.25 g/cm and 3.52 g/cm, respectively. kJ/mol

Be sure to answer all parts. For reactions in condensed phases (liquids and solids), the difference between AH and AU is usually quite small. This statement holds for reactions carried out under atmospheric conditions. For certain geochemical processes, however, the external pressure may be so great that AH and AU can differ by a significant amount. A well-known example is the slow conversion of graphite to diamond under Earth's surface. Calculate AH- AU for the conversion of 1 mole of graphite to 1 mole of diamond at a pressure of 4.00 x 10* atm. The densities of graphite and diamond are 2.25 g/cm and 3.52 g/cm, respectively. kJ/mol

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter8: Properties Of Gases

Section: Chapter Questions

Problem 113QRT

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