What is the molar energy of combustion (in kJ/mol) of C7HO2 when 2.50 g ofC7H6O2 burns completely in excess O2 gas at constant pressure, temperature 298 Kand releases -30.9 kJ of energy?2 C7H6O2 + 15 02 - 14 CO2 + 6 H201.59 x 105 kJmol-11.59 x 10 kJmol-1O1.59 x 103 kJmol¯11590 kJmol-1

Given Reaction:- 2C7H6O2 + 15O2 -----> 14CO2 + 6H2O Mass of C7H6O2 = 2.50g Molar Mass of C7H6O2…

hat is the molar energy of combustion (in kJ/mol) of C7H6O2 when 2.50 g of H6O2 burns completely in excess O2 gas at constant pressure, temperature 298 K d releases -30.9 kJ of energy? H6O2 + 15 O2 → 14 CO2 + 6 H2O 1.59 × 105 kJmol-1 1.59 × 10 kJmol¯1 P 1.59 × 103 kJmol¯1 P 1590 kJmol-1

hat is the molar energy of combustion (in kJ/mol) of C7H6O2 when 2.50 g of H6O2 burns completely in excess O2 gas at constant pressure, temperature 298 K d releases -30.9 kJ of energy? H6O2 + 15 O2 → 14 CO2 + 6 H2O 1.59 × 105 kJmol-1 1.59 × 10 kJmol¯1 P 1.59 × 103 kJmol¯1 P 1590 kJmol-1

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter2: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 2.79E: The enthalpy of combustion of diamond is -395.4 kJ/mol. C s, dia O2 g CO2 g Determine the fH of C...

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Question

What is the molar energy of combustion (in kJ/mol) of C7HO2 when 2.50 g of
C7H6O2 burns completely in excess O2 gas at constant pressure, temperature 298 K
and releases -30.9 kJ of energy?
2 C7H6O2 + 15 02 - 14 CO2 + 6 H20
1.59 x 105 kJmol-1
1.59 x 10 kJmol-1
O
1.59 x 103 kJmol¯1
1590 kJmol-1

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