apch06_ptap - 6 H 5 OH (s) , is completely burned according...

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South Pasadena AP Chemistry Name _______________________________ Period ___ Date ___/___/___ 6 Energy & Chemical Thermodynamics P R A C T I C E T E S T C 2 H 2 (g) + 2 H 2 (g) C 2 H 6 (g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance H ° f (kJ/mol) C 2 H 2 (g) 226.7 C 2 H 6 (g) -84.7 (a) Write the equation for the heat of formation of C 2 H 6 (g) (b) Use the above information to determine the enthalpy of reaction for the equation given. C 6 H 5 OH (s) + 7 O 2 (g) 6 CO 2 (g) + 3 H 2 O (l) When a 2.000-gram sample of pure phenol, C
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Unformatted text preview: 6 H 5 OH (s) , is completely burned according to the equation above, 64.98 kilojoules of heat is released. Use the information in the table below to answer the questions that follow. Substance Standard Heat of Formation, ∆ H f ; at 25 ° C (kJ/mol) CO 2 (g) -393.5 H 2 O (l) -285.85 C 6 H 5 OH (s) ? (a) Calculate the molar heat of combustion of phenol in kilojoules per mole at 25 ° C. (b) Calculate the standard heat of formation, ∆ H f , of phenol in kilojoules per mole at 25 ° C....
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This note was uploaded on 02/12/2012 for the course CHEMI 0043 taught by Professor Kaisasantos during the Summer '11 term at Pontificia Universidad Catolica Madre y Maestra.

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