endothermic vs exothermic

endothermic exothermic


  • 1) zoology Of an animal whose body temperature is regulated by internal factors.
  • 2) chemistry Of a chemical reaction that absorbs heat energy from its surroundings.
  • 3) Chemistry Characterized by or causing the absorption of heat; endoergic.
  • 4) Biology Of or relating to an organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings; warm-blooded.
  • 5) (Chem.) Designating, or pert. to, a reaction which occurs with absorption of heat; formed by such a reaction; ; -- opposed to exothermic.
  • 6) (of a chemical reaction or compound) occurring or formed with absorption of heat
  • 7) Relating to absorption of heat.


  • 1) zoology Of an animal whose body temperature is regulated by external factors; cold-blooded
  • 2) chemistry, of a compound That releases heat during its formation, and absorbs it during its decomposition
  • 3) chemistry, of a reaction That releases energy in the form of heat.
  • 4) Releasing heat.
  • 5) (Chem.) Characterized by, or formed with, evolution of heat; ; -- opposed to endothermic.
  • 6) (of a chemical reaction or compound) occurring or formed with the liberation of heat
  • 7) Relating to a liberation of heat.


  • 1) II., where the meaning of the expression endothermic is explained.
  • 2) Compounds are therefore of two kinds: those which absorb heat during their preparation, and consequently liberate heat when they are decomposed -- such being termed endothermic; and those which evolve heat during their preparation, and consequently absorb heat when they are decomposed -- such being called exothermic.
  • 3) Let them contract again and, in a socalled endothermic reaction, they cool down.
  • 4) This process is endothermic, meaning it absorbs thermal energy from its surroundings, decreasing the temperature and eliminating the fire. [wiki]
  • 5) 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
  • 6) The Namir - meaning 'tiger' - is a joint development between Frazer-Nash Research and Giugiaro and uses a 814cc "endothermic" rotary engine to charge a 400V 108-cell lithium-ion battery pack that is, in turn, hooked up to four electric motors - two per axle - that together generate 362bhp (270kW).
  • 7) I wasn†™ t very good in thermodynamics, but my guess is that the cloak is endothermic somehow, and it sucked all the heat from inside the bubble.
  • 8) Apparently, there was an overload in the Jónsson Alignment Compensators, which caused the endothermic vacuum inducers in Montana, Colorado, and Utah to change their focus angle.
  • 9) • The massive Sigurðsson-Björk subterranean endothermic induction “vacuum” to remotely suck the heat energy from the magma chamber,
  • 10) ‘Solar receivers absorb this concentrated solar radiation and deliver it, in the form of high-temperature heat, to a chemical reactor wherein an endothermic reaction results in the production of solar fuels.’
  • 11) ‘A reaction which has a positive value for this is an endothermic reaction and requires heat.’
  • 12) ‘This process is endothermic, pulling heat from its surroundings.’
  • 13) ‘Evaporation is an endothermic process, so the heat inside the refrigerator is absorbed by the coil and the refrigerator is cooled.’
  • 14) ‘It is fully reversible with the temperature and displays in heating direction as a small endothermic event.’
  • 15) ‘However this strategy is not feasible for endothermic herbivores with a rapid metabolic rate and having limited time available to extract energy and nutrients.’
  • 16) ‘This bone structure similarity shows that dinosaurs were endothermic.’
  • 17) ‘The larger an endothermic animal, the more heat it generates relative to the surface area of its body.’
  • 18) ‘For example, one might think that skeletal growth rates would be higher for an endothermic animal than for an ectothermic, or cold-blooded, one.’
  • 19) ‘According to this scenario, also like mammals and birds, they must have been endothermic, or nearly so.’


  • 1) So when you actually generate the chloroform, that chemical reaction is what ` s called exothermic, so it generates quite a good deal of heat, and that heat can get out of hand.
  • 2) This reaction is exothermic, that is, it releases heat, and will occur spontaneously in the presence of a nickel or ruthenium catalyst nickel is cheaper, ruthenium is better.
  • 3) This process is exothermic, meaning that it releases heat.
  • 4) 'exothermic' process that can raise the starting temperature of 650 degrees by another 200 degrees.
  • 5) The word that comes to mind is exothermic, the first nanoseconds of an explosion splintering into white-hot fractal fissures.
  • 6) Great lessons there on thermochemistry, especially what an exothermic reaction is
  • 7) I won't mention proportions or how to trigger it - this is a highly exothermic and dangerous reaction ..
  • 8) ‘Sodium hydroxide dissolved into water is an exothermic process, ammonium nitrate dissolved in water is an endothermic process.’
  • 9) ‘The rusting of iron is an exothermic reaction and this process is used in hand warmers which are utilized in cold regions.’
  • 10) ‘When fireworks are ignited, the chemical compounds react with each other in an exothermic reaction - releasing energy.’
  • 11) ‘For these exothermic processes, the solubility decreases with an increase in temperature.’
  • 12) ‘Inside the mold, the liquid undergoes an exothermic chemical reaction, which forms the polyurethane polymer in the mold.’

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