Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085117 |
The Molecular Basis for the Heat Capacity and Thermal Expansion of Natural Waters | |
Brewer, Peter G.; Peltzer, Edward T. | |
2019-11-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:13227-13233 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The high heat capacity of seawater has been cited as why 93% of the heat trapped by anthropogenic greenhouse gases is absorbed by the ocean. Specific heats (C-P) are closely tied to molecular weight. The mean molecular weight of pure water over the range 0-40 degrees C is 86.1-80.7 and 89.4-84.5 for seawater. Warming of water increases the kinetic energy of the molecules and induces breaking of hydrogen bonds (8.364 kJ/mol); both effects increase the volume of the fluid. Warming pure water from 0-10 degrees C increases the single H2O molecular form by 1.64%, accounting for 36.3% of the energy consumed. The specific heat of pure water is thus attributable (63.7%) to increasing the kinetic energy of the water, and (36.3%) to the energy required to break hydrogen bonds. For seawater, 34.7% of the energy goes to breaking hydrogen bonds while the rest (65.3%) is attributable to increasing the kinetic energy of the molecules. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000505879600063 |
WOS关键词 | LIQUID WATER ; OCEAN ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225115 |
专题 | 环境与发展全球科技态势 |
作者单位 | Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA |
推荐引用方式 GB/T 7714 | Brewer, Peter G.,Peltzer, Edward T.. The Molecular Basis for the Heat Capacity and Thermal Expansion of Natural Waters[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):13227-13233. |
APA | Brewer, Peter G.,&Peltzer, Edward T..(2019).The Molecular Basis for the Heat Capacity and Thermal Expansion of Natural Waters.GEOPHYSICAL RESEARCH LETTERS,46(22),13227-13233. |
MLA | Brewer, Peter G.,et al."The Molecular Basis for the Heat Capacity and Thermal Expansion of Natural Waters".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):13227-13233. |
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