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

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Chapter1: Chemical Foundations
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Be sure to answer all parts.
For reactions in condensed phases (liquids and solids), the difference between AH andAU 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
< Prev
21
Transcribed Image Text:3 attempts left Check my work Be sure to answer all parts. For reactions in condensed phases (liquids and solids), the difference between AH andAU 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 < Prev 21
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