Model of Heat Capacity in Volume Dimension

doi:10.1021/acs.jpca.0c05729

SIC OpenIR

	Model of Heat Capacity in Volume Dimension
	Tang, MB; Liu, XC; Zhang, MH; Pan, XH; Wen, HQ
	2020-07-23
Source Publication	JOURNAL OF PHYSICAL CHEMISTRY A
ISSN	1089-5639
Issue	29 Pages:6119
Subtype	Article
Abstract	Heat capacity is an important and fundamental thermodynamic parameter in materials. The temperature-dependent heat capacity (HC) was studied extensively. Here, the universal correlation between the experimental heat capacity C-p and the coefficient of thermal expansion beta in reference solids at high temperatures: C-p = C-o + E beta (C-0 and E: constants) and the volume-dependent heat capacity C-TE in the temperature range from several Kelvins to melting temperatures is quantitatively determined: C-TE = E beta and a new phenomenological model of the experimental heat capacity below the melting temperature in the volume dimension is established: C-p = C-T + C-TE(the non-volume-dependent heat capacity C-T = C(0)f(D), f(D): Debye function). Previous harmonic and anharmonic HC models explain the HC at low temperatures and high temperatures, respectively. The new model successfully explains the HC at the whole temperature range below the melting temperature and quantitatively determines the change behavior of the temperature and volume in solids after absorbing the heat.
DOI	10.1021/acs.jpca.0c05729
WOS Keyword	THERMAL-EXPANSION ; TEMPERATURE ; SOLIDS ; CONSTANT
Language	英语
WOS Research Area	Chemistry ; Physics
Publisher	AMER CHEMICAL SOC
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27892
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Tang, MB,Liu, XC,Zhang, MH,et al. Model of Heat Capacity in Volume Dimension[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2020(29):6119.
APA	Tang, MB,Liu, XC,Zhang, MH,Pan, XH,&Wen, HQ.(2020).Model of Heat Capacity in Volume Dimension.JOURNAL OF PHYSICAL CHEMISTRY A(29),6119.
MLA	Tang, MB,et al."Model of Heat Capacity in Volume Dimension".JOURNAL OF PHYSICAL CHEMISTRY A .29(2020):6119.

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