The standard enthalpy of formation of H2O(l) at 298 K is -285.8 kJ/mol. Calculate the change in internal energy for the following process at 298 K and 1 atm (basically at STP). The equation for formation is H2+ 0.5O2 H2O +285.8 kJ ...
(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 )– (74.8 kj mol −1 + 2 x 0) enthalpy change = – 890.7 kj mol −1 q10. calculate the enthalpy of formation of oh – ions at 25 ...
1.1DefinitionofEnthalpy Review：➢Thefirstlawofthermodynamics：E=q+w ➢Whenopensystemwithonlymechanicalworkassociatedwithvolume：pressure-volumework,orP-Vwork ΔV w=Fs=-P*A*h=-PΔV Zn ΔV=Vfinal-Vntial ΔV>0,w<0 ΔV<0,w>0 H2(g)HCl(aq)Zn(s)+2H+(aq)Zn2+(aq)+H2(g)2 1.1...
Standard molar enthalpy of formation of α-MoO3 · H2O by solution calorimetryThermal Power Plantsfactory switchgear roomventilationdesignanalysisKamrin BB, Pohl DG, Pohl HA.doi:10.1016/0021-9614(84)90093-4S Crouch-BakerP.G DickensElsevier LtdJournal of Chemical Thermodynamics...
可能是，C+O2=CO2 2H2+O2=2H2O 6CO2+6H2O=C6H12O6 +6O2 C6H12O6—酶2C2H5OH+2CO2
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 ...
1)enthalpy of formation生成焓 1.Theoretical calculation of bond dissociation energy andenthalpy of formationfor trinitromethane;三硝基甲烷键离解能和生成焓的理论计算 2.The density was estimated theoretically by the Monte-Carlo method,and theenthalpy of formationwas estimated by designing reactions which ...
The standard free energy and enthalpy of formation of the ScOOH, CrOOH and YOOH phases have been estimated from the reported hydrothermal phase diagrams for the M 2O 3-H 2O (M ≡ Sc, Cr and Y) systems, where the equilibrium dehydration reactions are M( OH) 3 → MOOH → M 2 O 3...
C3H6O(l) + 4O2(g) --> 3CO2(g) + 3H2O(l) -393.5 -285.8 I cannot find the enthalpy of formation for acetone and oxygen. Why is this? Do they even have a standard enthalpy of formation? Logged ARGOS++ Sr. Member Posts: 1489 ...
更新1: [△Hf/kJmol-1: BaO(s): -997.5; BaCO3(s): -1218.8; CO2(g): -393.5; C2H4(g): +52.3; C2H6(g): -84.6; C2H5Br(l): -92.0; C2H5OH(l): -277.7; HBr(g): -36.2; H2O(l): -285.9; H2SO4(l): -814.0; MgCl2(s): -641.8; TiCl4(l): -...