| 单词 | endothermic |
| 例句 | He felt necessary around 10:30 on Friday night, when the atmosphere at the House of Vans skate park had grown flushed, endothermic, droopy. Music Review: Muscling Through a Murky, Hardcore Night in a Box 2011-07-31T22:03:29Z However, given that modern birds are endothermic, the dinosaurs that served as ancestors to birds likely were endothermic as well. Fundamentals of Biology 2015-01-01T00:00:00Z Unlike the reptiles, birds are endothermic, meaning they generate their own body heat through metabolic processes. Concepts of Biology 2013-04-25T00:00:00Z A reaction or change that absorbs heat is an endothermic process. Chemistry 2019-02-14T00:00:00Z This results in a smaller endothermic animal having a higher BMR, per body weight, than a larger endothermic animal. Biology for AP Courses 2022-06-09T00:00:00Z "Cold-blooded animals often shut down their metabolism entirely during a tough season, but many endothermic or 'warm-blooded' animals that hibernate frequently reactivate their metabolism during the hibernation period," Whitney explained. 250M year-old creature with elephant-like tusks, turtle-like beak hibernated to survive, study finds 2020-08-30T04:00:00Z Mammals are endothermic, and hair provides insulation to retain heat generated by metabolic work. Fundamentals of Biology 2015-01-01T00:00:00Z Mammals are endothermic, and hair provides insulation by trapping a layer of air close to the body to retain metabolic heat. Concepts of Biology 2013-04-25T00:00:00Z When the bag of water is broken, the pack becomes cold because the dissolution of ammonium nitrate is an endothermic process that removes thermal energy from the water. Chemistry 2019-02-14T00:00:00Z The diet of an endothermic animal is determined by its BMR. Biology for AP Courses 2022-06-09T00:00:00Z There is no levelling up, there are no weapons unlocks; it’s all about combining the different capabilities – from Mei’s endothermic blaster to Mercy’s healing staff – in effective ways. The 50 best video games of the 21st century 2019-09-19T04:00:00Z Like mammals, which are also endothermic, birds have an insulating covering that keeps heat in the body: feathers. Fundamentals of Biology 2015-01-01T00:00:00Z Solving conflicts in the boardroom with endothermic managers isn’t often comfortable, so a great burden of conflict resolution may fall to the boards themselves. Biotech CEOs: Observations In Thermodynamics And Kinetics 2015-03-16T04:00:00Z If the solute’s electrostatic forces are significantly greater than the solvation forces, the dissolution process is significantly endothermic and the compound may not dissolve to an appreciable extent. Chemistry 2019-02-14T00:00:00Z Adipose tissues additionally serve as insulation to help maintain body temperatures, allowing animals to be endothermic, and they function as cushioning against damage to body organs. Biology for AP Courses 2022-06-09T00:00:00Z He remains convinced that only powerful, genuinely endothermic dinosaurs would have wielded sufficient energy to remain dominant for 150 million years. Dinos neither warm nor cold blooded 2014-06-12T04:00:00Z Humans are endothermic creatures, which means they give off heat. Hotter, Wetter Cimate Slashes Labor Capacity by 10% 2013-02-25T02:15:05.803Z As an investor trying to identify talented leaders, while the exothermic executive quickly lights up the room, it often requires several meetings to begin to appreciate the deep competence and attraction of endothermic executives. Biotech CEOs: Observations In Thermodynamics And Kinetics 2015-03-16T04:00:00Z Is the dissolution of KNO3 an endothermic or an exothermic process? Chemistry 2019-02-14T00:00:00Z In certain climates, endothermic animals have some form of insulation, such as fur, fat, feathers, or some combination thereof. Biology for AP Courses 2022-06-09T00:00:00Z The slowdown produces LAGs, even in endothermic organisms, and is an ancient mechanism for coping with lean times. Dinosaurs Might Have Had Warm-Blooded Animals' Fast Metabolism 2012-06-27T22:45:02.223Z The reaction C + H2O = CO + H2 is endothermic, that is, its thermal value is negative. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Generally speaking, there are two types of thermodynamic processes, endothermic and exothermic ones: Biotech CEOs: Observations In Thermodynamics And Kinetics 2015-03-16T04:00:00Z The process is endothermic, and so the extent of ionization and the resulting concentrations of hydronium ion and hydroxide ion increase with temperature. Chemistry 2019-02-14T00:00:00Z For example, endothermic animals tend to have larger bodies in the cooler climates closer to the earth’s poles, allowing them to better conserve heat. Biology for AP Courses 2022-06-09T00:00:00Z Dinosaur bone tissue is indistinguishable from that of today’s endothermic ruminants, Köhler says, meaning that dinosaurs were endothermic, too. Dinosaurs Might Have Had Warm-Blooded Animals' Fast Metabolism 2012-06-27T22:45:02.223Z All chemical compounds are either “endothermic” or “exothermic.” Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z A single substance like gun-cotton, which is highly endothermic and gives gaseous products, will produce a bright flame of decomposition if a single piece be heated in an evacuated flask. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 4 "Finland" to "Fleury, Andre" 2011-03-20T02:00:30.697Z Energy is always required to remove electrons from atoms or ions, so ionization processes are endothermic and IE values are always positive. Chemistry 2019-02-14T00:00:00Z But unlike warm-blooded, or endothermic, livestock, bugs don't spend much energy to keep themselves warm, so many scientists assume that pound for pound, they produce less greenhouse gas, too. To Fight Global Warming, Eat Bugs 2011-01-04T22:15:15Z This means that “LAGs cannot be used as an argument that dinosaurs could not have been endothermic”, Köhler says. Dinosaurs Might Have Had Warm-Blooded Animals' Fast Metabolism 2012-06-27T22:45:02.223Z In endothermic compounds energy, in some form, has been taken up in the act of formation of the compound. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The first step in synthetic biology is the addition of potential energy to matter, the reduction of an oxide, the separation of a salt into its radicals, the production of some endothermic chemical combination. The Mechanism of Life This process can be either endothermic or exothermic, depending on the element. Chemistry 2019-02-14T00:00:00Z Compounds formed with the evolution of heat are termed exothermic, while those formed with an absorption are termed endothermic. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" "They affect chemical action, retarding it greatly in exothermic actions, speeding greatly endothermic actions," answered X-6221, the greatest of the chemist-investigators. The Last Evolution In chlorate formation the greater part of the reaction represents a running down of energy and formation of exothermic compounds, with only a small yield of an endothermic substance. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z This is because acetylene has stored up heat in its formation instead of giving it off as in most reactions, or to put it in chemical language, acetylene is an endothermic compound. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Of the five elements Sn, Si, Sb, O, Te, which has the most endothermic reaction? Chemistry 2019-02-14T00:00:00Z Explosives are the commonest examples of endothermic compounds. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The toxic action of the impurities of crude acetylene is discussed in Chapter V. Acetylene is an "endothermic" compound, as has been mentioned in Chapter II., where the meaning of the expression endothermic is explained. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Some particular endothermic state or form results from the mode of formation and the consequent internal structure of the molecule. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z A cold pack used to treat muscle strains provides an example of an endothermic process. Chemistry 2019-02-14T00:00:00Z As described in the chapter on thermochemistry, the reverse of an endothermic process is exothermic. Chemistry 2019-02-14T00:00:00Z Calculations of this type will also tell us whether a reaction is exothermic or endothermic. Chemistry 2019-02-14T00:00:00Z Acetylene is endothermic, liberating heat when it is decomposed, absorbing it when it is produced. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Exothermic compounds are in a certain sense the reverse of endothermic; they are relatively inert and react but slowly or not at all, unless energy be expended upon them from outside. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z This condition describes an endothermic process that involves an increase in system entropy. Chemistry 2019-02-14T00:00:00Z If the reaction is endothermic the heat added can be thought of as a reactant. Chemistry 2019-02-14T00:00:00Z This condition describes an endothermic process that involves a decrease in system entropy. Chemistry 2019-02-14T00:00:00Z The theoretical and practical results of this circumstance will be elaborated in Chapter VI., when the endothermic nature of acetylene is more fully discussed. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Another idea of the meaning of endothermic is obtained from acetylene. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The bond energy for a diatomic molecule, DX–Y, is defined as the standard enthalpy change for the endothermic reaction: Chemistry 2019-02-14T00:00:00Z Additional heat would shift an exothermic reaction back to the reactants but would shift an endothermic reaction to the products. Chemistry 2019-02-14T00:00:00Z The sum of all bond energies in such a molecule is equal to the standard enthalpy change for the endothermic reaction that breaks all the bonds in the molecule. Chemistry 2019-02-14T00:00:00Z The positive sign for q indicates that the dissolution is an endothermic process. Chemistry 2019-02-14T00:00:00Z The manner in which a substance is endothermic is of importance as regards the practical employment of explosives. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Melting, vaporization, and sublimation are all endothermic processes, requiring an input of heat to overcome intermolecular attractions. Chemistry 2019-02-14T00:00:00Z Cooling an exothermic reaction causes the reaction to shift toward the product side; cooling an endothermic reaction would cause it to shift to the reactants’ side. Chemistry 2019-02-14T00:00:00Z The formation of ozone from oxygen is an endothermic reaction, in which the energy comes from an electrical discharge, heat, or ultraviolet light: Chemistry 2019-02-14T00:00:00Z All carbon compounds, excepting carbon dioxide, and many if not all compounds of nitrogen, are endothermic. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Physical structure alone can be the cause of a relative endothermic state, as in the glass bulbs known as Rupert’s drops, &c. , or even in chilled steel. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z |
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