The equation for formation is H2+ 0.5O2 H2O +285.8 kJ Since we have to find internal energy.. the equation is.. ΔE= q+ w Q is definitely -285.8 kJ W is derived from PΔV and PV can come from the ideal gas law equation. ...
−1 enthalpy of formation of h 2 o = − 286 kj mol −1 enthalpy change = Δ h o products –Δ h o reatants enthalpy change = (Δ h o co2 +Δ h o h2o )– (Δ h o ch4 + 2 Δ h o o2 ) enthalpy change = (− 393.5 kj mol −1 + − 286 kj mol −1 )–...
H2O(l)H2O(l) −285.8−285.8 Cu2O(s)Cu2O(s) −168.6−168.6 Mg(aq)2+Mg(aq)2+ −466.85−466.85 The symbols in the brackets indicate the state: ss— solid, ll— liquid, gg— gas, and aqaq— dissolved in water. If you need the standard enthalpy of formation for other ...
Re: standard enthalpy of formation for acetone and oxygen «Reply #4 on:March 07, 2008, 05:09:44 PM » I need some serious help with this assignment A sample of acetone liquid (C3H6O) is burned in an insulated calorimeter to produce carbon dioxide gas and liquid water. Determine the...
ChemicalandphysicalchangesoccurundertheconstantpressureofEarth’satmosphere.H=E+PV E—internalenergy,P—pressureofthesystem,V—volumeofthesystem.Enthalpyisacombinationofinternalenergyandpressure-volumework.3 1.2EnthalpyChanges Hisastatefunction,which 1 meansitonlydependsonthe currentstateofthesystemand 2 not...
The enthalpy of formation of the metasilicate hydrate Na2SiO3.5H2O referred to the anhydrous silicate and water was determined by solution calorimetry at 298.2 K : −59.3 ± 3.0 kJ/mol. Some considerations on the thermochemistry of hydrates are proposed.[Copyright &y& Elsevier]年份: 2002...
Homework Statement We already know that standard heat or enthalpy of formation of a substance is the heat change in forming one mole of the compound from...
11.Synthesis of Cerium Nitrate with Alanine Complex and Standard Molar Formation Enthalpy of Its Ion硝酸铈丙氨酸配合物的合成及其配离子的标准生成焓 12.The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.讨论了气态摩尔标准生成焓与取代基...
1.Standard molar enthalpy of formation of Zn(Thr)2+ (aq, ∞) and that of Zn(Thr) Ac2 · 2H2O (s) were calculated to be (955.15K时在纯水中的溶解焓,计算了Zn(Thr)~(2+)(aq,∞)和Zn(Thr)Ac_2·2H_2O(s)的标准摩尔生成焓分别为(955。 2.Finally,standard molar enthalpy of formation...
℃, the chemical reaction andstandard enthalpy of formationwere measured by a solution calorimeter, and the solution reaction of [2Dy(NO_3)_3·6H_2O+2Glu+6NaClO_4·H_2O] and [Dy_2(Glu)_2(ClO_4)_4·9H_2O+6Na.300kJ/mol,计算得到配合物Dy2(Glu)2(ClO4)4·9H2O(s)在25℃时的...