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<p>Thermodynamic properties of the pyrochlore Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>(s) by solid oxide electrochemical cell</p>

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Title Statement <p>Thermodynamic properties of the pyrochlore Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>(s) by solid oxide electrochemical cell</p>
 
Added Entry - Uncontrolled Name Banerjee, A A; Homi Bhabha National Institute (Chemistry), Mumbai 400 094, India
 
Uncontrolled Index Term Thermodynamics
Pyrochlores, Electrochemical cells, Oxides, Rare earth ruthenates, Ruthenates, Thermodynamic parameters, Gibbs energy of formation
 
Summary, etc. <p style="text-align: justify;">Gibbs energy of formation of Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>(s) has been determined using solid state electrochemical technique employing oxide ion conducting electrolyte. The reversible electromotive force of the following solid-state electrochemical cell, (-)Pt/{Gd<sub>2</sub>O<sub>3</sub>(s)+Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>(s)+ Ru(s)}//CSZ//O<sub>2</sub>(<em>p</em>(O<sub>2</sub>) = 21.21 kPa)/Pt(+) has been measured. The Gibbs energy of formation of Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>(s) from elements in their standard state, calculated by the least squares regression analysis of the data obtained in the present study, is represented by: {D<sub>f</sub> G<sup>O </sup>(Gd<sub>2</sub>Ru<sub>2</sub>O<sub>7</sub>, s)/(kJ mol<sup>-1</sup>) ±1.7} = – 2549.1 + 0.6438× (<em>T/ </em>K); 1030.9 £  <em>T</em>/K £ 1193.6. The second law method gives the value of standard molar enthalpy of formation of the compound from the elements at 298.15 K.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-10 12:47:21
 
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http://op.niscair.res.in/index.php/IJCA/article/view/18107
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 9 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/18107/57141
 
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