Negative of the lattice energy of NaCl(s) Na+(g)+Cl−(g)→NaCl(s)ΔH=−ΔHlattice=?Na+(g)+Cl−(g)→NaCl(s)ΔH=−ΔHlattice=? Enthalpy of formation of NaCl(s), add steps 1–5 ΔH=ΔH∘f=ΔH∘s+12D+IE+(−EA)+(−ΔHlattice)Na(s)+12Cl2(g)→NaCl(s)...
The present study deals with determination of enthalpy of formation of sodium-cobalt oxides [Na_xCoO_2 (x = 0.1,0.2.. .0.9)] using a solution calorimeter. The standard molar heat of dissolutions of Na_xCoO_2 (x = 0.1,0.2.. .0.9), NaCl(s), CoCl_3(s) and H_2O (1) in ...
have a standard enthalpy of formation zero. Enthalpy of formation means enthalpy change during the formation of one mole of a substance. But an element formed from itself means no enthalpy change, so its enthalpy of formation will be zero. What is the enthalpy of formation of water?
By measurement of the enthalpies of solution of NaAlCl4(c), NaCl(c), and AlCl3(c) in 0.05 mol kg1 HCl the standard enthalpy of formation of NaAlCl4 has been determined to be ΔHfo(NaClCl4, c, 298.15 K) = (1139.45 ± 1.20) kJ mol1....
(d)Calculate the standard enthalpy change of formation, AH, of radium sulfide.-438standard enthalpy change, △H_4= ... kJ mol-1 [2](e)(i) State the two major factors that affect the numerical magnitude of a lattice energy.ionic radius / size / sum off ionic radii ionic charge /prod...
1.Application of the Molecular Interaction Volume Model and HA Model to Predict the Enthalpy of Formation of Liquid Alloys;应用分子相互作用体积模型和HA模型预测液态合金体系的混合焓 2.The Determination, Correlation and Calculation of the Excess Enthalpies for the Binary System of Alcohols and Esters;醇...
Dirk,Stigter - 《Journal of Physical Chemistry B》 被引量: 117发表: 1975年 The Effect of NaCl on the Krafft Temperature and Related Behavior of Cetyltrimethylammonium Bromide in Aqueous Solution An enthalpy–entropy compensation rule was observed for both adsorption and micelle formation. The T K...
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2.In order to provide available thermophysical property parameters for fresh water fish processing,the unfreazable water,initial freezing point,apparent specific heat,enthalpy of silver carp meat and effects of NaCl content on thermophysical properties of silver carp meat during phase transition were stu...
3、+ cl-(g)hf (nacl) = -411kjna-+cl- (s)l.e (na+cl-) = -788kjassume energy = 0but how do we get -788kj? method 1hatmna +hatmcl +hie +h1stae+ hl.e= hformationrearrange in terms of hl.egives hl.e= hformation - (hatmna +hatmcl +hie +h1stae) = -411 (108 + 12...