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what refers to reactions that give off energy as they occur?
Such reactions are called Exothermic reactions. Their change in enthalpy is negative. Such reactions are favorable at low temperature.
Why does your body allows chemical reactions to occur at low temperature?
My butt
What is a chemical reaction producing heat and light?
Any chemical will give off light if it is heated to a sufficiently high temperature. There are also chemicals that give off light at relatively low temperatures. Fireflys produce a type of chemical called luciferins, that produce light.
Does the onset of fusion reactions inside stars require high or low density and high or low temperature?
Starting the fusion reactions required high density and high heat.
How do Enzymes permit low temperature reactions?
Enzymes act as catalysts for biochemical reactions. Therefore, they allow reactions to occur with greater ease at low temperatures.
what refers to reactions that give off energy as they occur?
Such reactions are called Exothermic reactions. Their change in enthalpy is negative. Such reactions are favorable at low temperature.
Where is thinning of ozone most evident?
The thinning of ozone layer is most pronounced at the poles of the earth. It is because of the low temperature of the low temperature there. The ozone depleting reactions are carried on the polar stratospheric clouds i.e. the PSC's. these PCS's require minimum temperature for their formation which is possible only on the poles.
Why does your body allows chemical reactions to occur at low temperature?
My butt
Why there is ozone gap on top of Antarctica specifically?
Ozone layer thinning is most pronounced over the Antractica because of a no of factors some of which are: 1) The CFC's released by humans are carried towards the Antarctica by the westerlies or the westerly winds where they cause ozone depletion. 2) the poles are the regions having low temperature and the ozone depleting reactions are only carried in temperature below -2o temperature that is on the polar stratospheric clouds. This attainment of temperature as low as 2o is only possible on the poles.
Does the onset of fusion reactions inside stars require high or low density and high or low temperature?
Starting the fusion reactions required high density and high heat.
What is a chemical reaction producing heat and light?
Any chemical will give off light if it is heated to a sufficiently high temperature. There are also chemicals that give off light at relatively low temperatures. Fireflys produce a type of chemical called luciferins, that produce light.
Why do sugars break down quickly in your body?
enzymes allow your body too initiate chemical reactions at low temperature and to control the rate of reactions.
Why is synthesis of p-nitro acetanilide carried out at low temperature?
because if the temperature rises it will give o-nitroacetanilide too.
What kind of reaction is once started will continue by itself?
No. It requires an energy input (the activation energy) before it can proceed. For some reactions the energy needed can be as low as simply heat from the room and others need thousands of Watts of electrical power.
How do Enzymes permit low temperature reactions?
Enzymes act as catalysts for biochemical reactions. Therefore, they allow reactions to occur with greater ease at low temperatures.
Why can a low temperature cause death?
because all the reactions happening in your body (the things keeping you alive) are unable to work at a temperature under 37 degrees
On what conditions does a spontaneous reaction become spontaneous?
For some non-spontaneous reactions, you can change the temperature. For other non-spontaneous reactions, there is nothing you can do to make it spontaneous. Nature favors reactions that increase a system's entropy (disorder) and nature favors reactions that are exothermic (they release enthalpy). Any reaction that does both of these things is spontaneous at all temperatures. Any reaction that does neither of these things is never spontaneous. As far as this question is concerned, the interesting reactions are endothermic reactions that increase entropy and exothermic reactions that decrease entropy. Whether these reactions are spontaneous depends on the temperature. The first variety (endothermic, increase entropy) will be spontaneous at high temperatures; the second (exothermic, decrease entropy) will be spontaneous at low temperatures. To find the temperature at which a reaction becomes spontaneous, one may apply the Gibbs equation: DG = DH - TDS where capital Ds stand for the Greek capital delta.
