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rdf:type
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Description
| - The heat capacity and the enthalpy increments of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7 were measured by the relaxation time method (2-300 K), DSC (260-360 K) and drop calorimetry (720-1370 K). Temperature dependencies of the molar heat capacity in the form Cpm = 248.0 + 0.04350T - 3.948 x 10^6/T2 J K-1 mol-1 for Sr2Nb2O7 and Cpm = 257.2 + 0.03621T - 4.434 x 10^6/T2 J K-1 mol-1 for Ca2Nb2O7 were derived by the least-square method from the experimental data. The molar entropies at 298.15 K, Sm°(298.15 K) = 238.5 +- 1.3 J K-1 mol-1 for Sr2Nb2O7 and Sm°(298.15 K) = 212.4 +- 1.2 J K-1 mol-1 for Ca2Nb2O7, were evaluated from the low-temperature heat capacity measurements.
- The heat capacity and the enthalpy increments of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7 were measured by the relaxation time method (2-300 K), DSC (260-360 K) and drop calorimetry (720-1370 K). Temperature dependencies of the molar heat capacity in the form Cpm = 248.0 + 0.04350T - 3.948 x 10^6/T2 J K-1 mol-1 for Sr2Nb2O7 and Cpm = 257.2 + 0.03621T - 4.434 x 10^6/T2 J K-1 mol-1 for Ca2Nb2O7 were derived by the least-square method from the experimental data. The molar entropies at 298.15 K, Sm°(298.15 K) = 238.5 +- 1.3 J K-1 mol-1 for Sr2Nb2O7 and Sm°(298.15 K) = 212.4 +- 1.2 J K-1 mol-1 for Ca2Nb2O7, were evaluated from the low-temperature heat capacity measurements. (en)
- Tepelná kapacita a změny entalpie stroncium niobátu Sr2Nb2O7 a kalcium niobátu Ca2Nb2O7 byly změřeny relaxační metodou (2-300 K), DSC (260-360 K) a vhazovací kalorimetrií (720-1370 K). Teplotní závislost molární tepelné kapacity má tvar Cpm = 248.0 + 0.04350T - 3.948 x 106/T2 J K-1 mol-1 pro Sr2Nb2O7 a Cpm = 257.2 + 0.03621T - 4.434 x 106/T2 J K-1 mol-1 pro Ca2Nb2O7. Molární entropie při 298.15 K má hodnoty Sm°(298.15 K) = 238.5+- 1.3 J K-1 mol-1 pro Sr2Nb2O7 a Sm°(298.15 K) = 212.4 +- 1.2 J K-1 mol-1 pro Ca2Nb2O7. Tyto hodnoty byly získány z nízkoteplotních měření tepelných kapacit. (cs)
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Title
| - Heat capacity, enthalpy and entropy of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7
- Heat capacity, enthalpy and entropy of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7 (en)
- Tepelná kapacita, entalpie a entropie stroncium niobátu Sr2Nb2O7 a kalcium niobátu Ca2Nb2O7 (cs)
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skos:prefLabel
| - Heat capacity, enthalpy and entropy of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7
- Heat capacity, enthalpy and entropy of strontium niobate Sr2Nb2O7 and calcium niobate Ca2Nb2O7 (en)
- Tepelná kapacita, entalpie a entropie stroncium niobátu Sr2Nb2O7 a kalcium niobátu Ca2Nb2O7 (cs)
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skos:notation
| - RIV/60461373:22340/08:00020650!RIV09-MSM-22340___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA104/07/1209), Z(MSM0021620834), Z(MSM6046137302), Z(MSM6046137307)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22340/08:00020650
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Heat capacity; Entropy; Calorimetry; Strontium niobate; Calcium niobate (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Růžička, Květoslav
- Straka, Martin
- Svoboda, Pavel
- Leitner, Jindřich
- Sedmidubský, David
- Hampl, Milan
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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