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No, not all irreversible reactions are spontaneous - for example, cooking an egg. Once it's cooked, there's no going back to the raw egg stage. But it takes a lot of heat to get to that stage, so it is not spontaneous. If you find an old egg laid by a hen, it will not have a hardboiled texture!
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What is the reaction in a fuel cell spontaneous and non spontaneous?
Spontaneous ...Happens all by itself; typically unpredictableNon-spontaneous...You have to do something to make it happen.
The majority of spontaneous chemical reactions in nature are?
exothermic
What redox conditions will produce a spontaneous reaction?
The sum of the voltages of the half-reactions is positive.
Are endothermic reactions always nonspontaneous?
No, many exothermic reactions need the heat of activation to start the reaction. Paper, for instance, does not spontaneously burst into flame... you need to raise its temperature to the kindling point for it to burn.
What property characterizes a spontaneous redox reaction?
A positive sum of the two half-reactions' standard potentials
Is there a science to cooking?
Yes, all cooking is irreversible reactions.
What reversible and irreversible reactions can you find at home?
Cooking involve irreversible chemical reactions.
Which are more in nature reversible or irreversible chemical reactions?
irreversible
What is the reaction in a fuel cell spontaneous and non spontaneous?
Spontaneous ...Happens all by itself; typically unpredictableNon-spontaneous...You have to do something to make it happen.
Is lighting a firework irreversible and why?
yes, because it is a chemical reaction (chemical reactions are irreversible).
Are electrolysis reactions thermodynamically spontaneous?
yes
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.
The majority of spontaneous chemical reactions in nature are?
exothermic
What kind of reaction tends to be spontaneous?
Reactions that are exothermic
When elements form compounds can the elements not be recovered?
some but not all......many reactions are reversible and many r irreversible....depends on chemistry of reactions, physical change or chemical change...
Which reaction released energy?
An exothermic reaction (often a spontaneous one)
Is the reaction reversible?
chemical reactions are irreversible but physical changes are reversible
