
File:Thermally_Agitated_Molecule.gif · Wikimedia Commons · See Wikimedia Commons
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Key facts
- Physical quantity.name
- Temperature
- Physical quantity.image
- Thermally Agitated Molecule.gif
- Physical quantity.caption
- Thermal vibration of a segment of a protein's alpha helix. Its amplitude increases with temperature.
- Physical quantity.unit
- K
- Physical quantity.otherunits
- °C, °F, °R, °Rø, °Ré, °N, °D, °L, °W, Planck units
- Physical quantity.dimension
- wikidata
- Physical quantity.intensive
- Yes
- Physical quantity.derivations
- \frac{pV}{nR}, \frac{dq_\text{rev
via Wikipedia infobox
Research
1,222,479 papersvia PubMed
Wikidata facts
- Instance of
- state function
- Subclass of
- intensive quantity
- Image
- Pakkanen.jpg
Show 9 more facts
- quantity symbol (string)
- Θ
- Commons category
- Temperature
- topic's main category
- Category:Temperature
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- NCI Thesaurus ID
- C25206
- studied by
- thermodynamics
- P8168
- Fearless
- Stack Exchange tag
- physics.stackexchange.com/tags/temperature
- invariant under
- isothermal process
Sources (7)
via Wikidata · CC0
Article · 中文
温度是表示物体冷热程度的物理量,微观上来讲是物体分子热运动的剧烈程度。温度只能通过物体随温度变化的某些特性来间接测量,而用来量度物体温度数值的标尺叫温标。它规定了温度的读数起点(零点)和测量温度的基本单位。溫度理論上的高極點是「普朗克溫度」,而理論上的低極點則是「絕對零度」。「普朗克溫度」和「絕對零度」都是無法通过有限步骤達到的。目前国际上用得较多的温标有摄氏温标(°C)、华氏温标(°F) 、热力学温标(K)和国际实用温标。 温度是物体内分子间平均动能的一种表现形式。值得注意的是,少數幾個分子甚至是一個分子構成的系統,由於缺乏統計的數量要求,是沒有溫度的意義的。 溫度出現在各種自然科學的領域中,包括物理、地質學、化學、大氣科學及生物學等。像在物理中,二物體的熱平衡是由其溫度而決定,溫度也會造成固體的熱漲冷縮,溫度也是熱力學的重要參數之一。在地質學中,岩漿冷卻後形成的火成岩是岩石的三種來源之一,在化學中,溫度會影響反應速率及化學平衡。大气层中气体的温度是气温(atmospheric temperature),是氣象學常用名词。它直接受日射所影響:日射越多,氣温越高。 溫度也會影響生物體內許多的反應,恒温动物會調節自身體溫,若體溫升高即為發熱,是一種醫學症狀。生物體也會感覺溫度的冷熱,但感受到的溫度受風寒效應影響,因此也會和周圍風速有關。
Abstract from DBpedia / Wikipedia · CC BY-SA
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