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16 Nov 2019
Quiz-5 (11/14/2017); 20 min; 15 Points Name: 3) 2pts) Equations Associated with Enthalpies of Formation If the heat of formation of H:O() is-286 kJ/mol, which of the following thermochemical equations is correct? (a) 2 H(g) +0(g) â H2O() (b) 2H2(g) + O2(g) â 2H2O() (c) H2(g) + ½Odg) â H20(1) (d) H2(g) +0(g)â H2O(g) (e) H20() â H2(g) + ½Odg) ÎH=-286 kJ AH =-286 kJ AH- -286 k AH--286 k) (4) 3pts) Calculating an Enthalpy of Reaction from Enthalpies of Formation 2H2O(l) + O(g) Calculate the enthalpy change for the reaction 2H2O(1) â using enthalpies of formation: aHfo[H2O(1)] =-187.8 kJ/mol AHe[Ho()]--285.8 kJ/mol
Quiz-5 (11/14/2017); 20 min; 15 Points Name: 3) 2pts) Equations Associated with Enthalpies of Formation If the heat of formation of H:O() is-286 kJ/mol, which of the following thermochemical equations is correct? (a) 2 H(g) +0(g) â H2O() (b) 2H2(g) + O2(g) â 2H2O() (c) H2(g) + ½Odg) â H20(1) (d) H2(g) +0(g)â H2O(g) (e) H20() â H2(g) + ½Odg) ÎH=-286 kJ AH =-286 kJ AH- -286 k AH--286 k) (4) 3pts) Calculating an Enthalpy of Reaction from Enthalpies of Formation 2H2O(l) + O(g) Calculate the enthalpy change for the reaction 2H2O(1) â using enthalpies of formation: aHfo[H2O(1)] =-187.8 kJ/mol AHe[Ho()]--285.8 kJ/mol
Bunny GreenfelderLv2
11 Oct 2019