exergonic वाक्य
उदाहरण वाक्य
मोबाइल
- At high temperatures, the forward reaction is therefore endergonic, favoring the ( exergonic ) reverse reaction toward CO, even though the forward reaction is still exothermic.
- Of course, in all cases the net reaction of the " total " system ( the reaction under study plus the puller or pusher reaction ) is exergonic.
- According to the Marcus formula the rates increase also when the reactions are more exergonic, however only as long as & Delta; G 0 is positive or slightly negative.
- Subsequent hydrolysis of the product PP i ( by the enzyme inorganic pyrophosphatase ) is highly exergonic, and this reaction makes the formation of acyl-CoA spontaneous and irreversible.
- All physical and chemical systems in the universe follow the second law of thermodynamics and proceed in a downhill, i . e ., " exergonic ", direction.
- A reaction will be a spontaneous process at a certain temperature if the products have a lower Gibbs free energy ( an exergonic reaction ) even if the enthalpy of the products is higher.
- Endergonic reactions can be achieved if they are either " pulled " or " pushed " by an exergonic ( stability increasing, negative change in free energy ) process.
- My favorite example is dissolving ammonium nitrate in a small amount of water, which is exergonic ( so it occurs spontaneously ) but very endothermic ( you can use it to freeze water ).
- This process is highly exergonic ( accounting for approximately a " 19kJ change in free energy ), and therefore greatly increases the energetic favorability of reaction system when coupled with a typically less-favorable reaction.
- This exergonic fall in potential energy along the way is used to draw ( not pump ! ) H + ions from the lumen of the thylakoid into the cytosol of a cyanobacterium or the stroma of a chloroplast.
- If temperature is lowered enough, the entropy term stops becoming significant, so the exothermic term takes over, the reaction is exergonic and the reaction occurs ( until it gets too hot and the reaction stops ).
- Although exergonic reactions are said to occur " spontaneously ", this does not imply that the reaction will take place at an observable disproportionation of hydrogen peroxide is very slow in the absence of a suitable catalyst.
- :I have a feeling it may be acidity; if the pKa ( at 20 C ) is just at the right value, it will be energetically endothermic to lose the hydrogen proton, but exergonic to do so.
- Hydrolysis of the phosphate groups in ATP is especially exergonic, because the resulting orthophosphate group is greatly stabilized by multiple resonance structures, making the products ( ADP and P i ) much lower in energy than the reactant ( ATP ).
- They mention the exergonic reactions in such systems could have been a source of free energy that promoted chemical reactions, additional to their high mineralogical diversity which implies the induction of important chemical gradients, thus favoring the interaction between electron donors and acceptors.
- It is surprising that for redox reactions according to the Marcus formula the activation energy should increase for very exergonic reaction, i . e . in the cases when & Delta; G 0 is negative and its absolute value is greater than that of & lambda; o.
- ;Lithoautotroph : An organism ( usually bacteria ) whose sole source of carbon is carbon dioxide and exergonic inorganic oxidation ( chemolithotrophs ) such as " Nitrosomonas europaea "; these organisms are capable of deriving energy from reduced mineral compounds like pyrites, and are active in geochemical cycling and the weathering of parent bedrock to form soil
- This Ca 2 + tunneling occurs through the low-affinity Ca 2 + receptor VDAC1, which recently has been shown to be physically tethered to the IP3R clusters on the ER membrane and enriched at the MAM . The ability of mitochondria to serve as a Ca 2 + sink is a result of the electrochemical gradient generated during oxidative phosphorylation, which makes tunneling of the cation an exergonic process.
- The energy released by this highly exergonic oxidation reaction drives the endergonic second reaction ( ?G?= + 50 kJ / mol ( + 12kcal / mol ) ), in which a molecule of inorganic phosphate is transferred to the GAP intermediate to form a product with high phosphoryl-transfer potential : "'1, 3-bisphosphoglycerate "'( 1, 3-BPG ).
- Constant pressure, constant temperature reactions are exergonic if and only if the Gibbs free energy change is negative ( " " G " < 0 ) . " Exergonic " ( from the prefix exo-, derived for the Greek word ?? " exM ", " outside " and the suffix-ergonic, derived from the Greek word ???? " ergon ", " work " ) means " releasing energy in the form of work ".
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