Given 2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide
Consider the reaction for the formation of aluminum oxide from aluminum and oxygen.4Al(s)+3O2(g)⟶2Al2O3(s) ΔH11. Express the enthalpy of the following reaction, ΔH2, in terms of ΔH1.2Al2O3(s)⟶4Al(s)+3O2(g) ΔH2ΔH2=2. Express the enthalpy of the following reaction, ΔH3, in terms of ΔH1.12Al(s)+9O2(g)⟶6Al2O3(s) ΔH3 12Al(s)+9O2(g)⟶6Al2O3(s) ΔH3ΔH3=3. Express the enthalpy of the following reaction, ΔH4, in terms of ΔH1.2Al(s)+32O2(g)⟶Al2O3(s) ΔH4 2Al(s)+32O2(g)⟶Al2O3(s) ΔH4ΔH4=
Consider the following reaction at 298 K. 4Al(s)+3O2(g)⟶2Al2O3(s) Δ?∘=−3351.4 kJ Calculate the following quantities. Refer to the standard entropy values as needed. Δ?sys= J/K Δ?surr= J/K Δ?univ= J/K Al Entropy = 28.3 O2 Entropy=205.2 Al2O3= 50.9
Calculate the standard enthalpy change for the following reaction 2Al_2O_3(s) + 3C(s) rightarrow 4Al + 3CO_2(g) given the following: delta H CO_2(g) = -393.5 kJ/mol delta H C(s) = 0 kJ/mol delta H Al = 10.79 kJ/mol delta H Al_2O_3(s) = -1675.7 kJ/mol
Calculate the standard heat of formation of aluminum sulfide given the following information? 2Al2S3(s) + 9O2(g) ->2Al2O3(s)+ 6SO2(g) delta H of f = -3684.2kj (The standard heat of formation : for SO2(g) -296.8kj/mol; Al2O3(s)= -1676kj/mol; and O2(g)= 0.0kj/mol.)
The standard heat of formation, ΔH∘f, is defined as the enthalpy change for the formation of one mole of substance from its constituent elements in their standard states. Thus, elements in their standard states have ΔH∘f=0. Heat of formation values can be used to calculate the enthalpy change of any reaction. Consider, for example, the reaction 2NO(g)+O2(g)⇌2NO2(g) with heat of formation values given by the following table: Substance ΔH∘f (kJ/mol) NO(g) 90.2 O2(g) 0 NO2(g) 33.2 Then the standard heat...
A.Using standard heats of formation, calculate the standard enthalpy change for the following reaction. N2(g) + 3H2(g) = 2NH3(g) B.Using standard heats of formation, calculate the standard enthalpy change for the following reaction. CaCO3(s) = CaO(s) + CO2(g) C. A scientist measures the standard enthalpy change for the following reaction to be -2910.6 kJ: 2C2H6(g) + 7 O2(g) = 4CO2(g) + 6 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy...
The standard enthalpy of formation of NH_2(g) id -46 KJ mol^-1.The standard enthalpy of formation of H_2O(g) is -242 KJ middot mol^-1. The enthalpy of reaction is 906 kl. The standard enthalpy of formation of NO(g)is a. -754.5 kJ middot mol^-1 b. -362 kJ middot mol^-1 c. -196.5 kJ middot mol^-1 d. -90.5 k middot J-mol^-1 e. +90.5 kJ middot mol^- 1 f. +182.5 kJ middot mol^-1 g.+317 kJ middot mol^-1 h. +362 kJ middot mol^-1 i. +409 kJ middot...
A scientist measures the standard enthalpy change for the following reaction to be -2847.0 kJ: 2C2H6(g) + 7 02(g) —4CO2(g) + 6H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CzH6(g) is kJ/mol. A scientist measures the standard enthalpy change for the following reaction to be -15.0 kJ : Ca(OH)2(aq) + 2 HCl(aq) +CaCl(s) + 2 H20(1) Based on this value and the standard enthalpies of formation for...
A scientist measures the standard enthalpy change for the following reaction to be - 87.7 kJ : 2HBr(g) + Cl2(g)— 2HCl(g) + Bra(s) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HCl(g) is kJ/mol CH4() + H2O(g)_3H2(g) + CO(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O() is kJ/mol Given the standard enthalpy changes for...
The standard enthalpy change for the following reaction is 515 kJ at 298 K. Na 02(s)2 Na(s) +02(g) What is the standard heat of formation of Na202(s)? kJ/mol Submit Answer