12 Given the standard enthalpy changes for the following two reactions:(1) 2Zn(s) + O2(g)2ZnO(s)AH° = -696.6 kJ(2) Zn(s) + Cl2(g) ZnCh(s)AH° = -415.0 kJwhat is the standard enthalpy change for the reaction:(3) 2ZnCl,(s) + O2(g)2ZnO(s) + 2Cl2(g)AH° = ?kJ

Consider the given equation (3) for which we need to determine the standard enthalpy change is as…

Answered: Given the standard enthalpy changes for…

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Chapter6: Thermochemistry

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Problem 77E: Give the definition of the standard enthalpy of formation for a substance. Write separate reactions...

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sample of natural gas is analyzed and found to be88.4% methane (CH4) and 11.6% ethane (C2H6) bymass. The standard enthalpy of combustion of methaneto gaseous carbon dioxide (CO2) and liquid water (H2O) is -891 kJ/mol. Write the equation for the combustionof gaseous ethane to carbon dioxide and water.Calculate the standard enthalpy of combustion of ethaneusing standard enthalpies of formation from Table R-11on page 975. Using that result and the standard enthalpyof combustion of methane in Table 15.3, calculate theenergy released by the combustion of 1 kg of natural gas.
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Given the standard enthalpy changes for the following two reactions: (1) 2Zn(s) + O2(g)2ZnO(s) AH° = -696.6 kJ (2) Zn(s) + Cl2(g)¬ZnCl½(s) AH° = -415.0 kJ what is the standard enthalpy change for the reaction: (3) 2ZNC12(s) + O2(g)2ZnO(s) + 2C12(g) AH° = ? kJ