The rate of a chemical reaction in a refrigerator decreases.
WHY?
This is because there is decrease in temperature which leads to decrease in pressure where the volume is constant(pressure law).
Bananas turn black in the refrigerator mainly because of the chemical reactions in their peel.
A non-ripe green banana peel contains a plant hormone called ethylene. This gaseous chemical is responsible for helping ripen the banana to yellow color. At the same time, some natural acids are also being produced which regulate the ripening process and make the banana sweet (inside the banana, the large number of enzymes of Kreb's cycle convert citric acid, mallic acid and oxalic acid into glucose, which turn the banana sweet during the process of ripening).
When someone puts a banana in the fridge, the production of these natural acids slows down as consequence of the cold temperature and, as a result, the ripening process of its interior slows down.
However, in cold temperatures, the physical state of cell membranes in the banana peel changes causing leakage of the enzyme polyphenoloxidase which oxidize phenolic compounds that leak from the vacuoles of the cells ( this enzyme polymerises them into polyphenols similar in structure to the melanin formed in suntanned human skin), and hence producing the dark colour.
Nonetheless, bananas can be stored in the refrigerator for few days. Despite the peel of banana becoming dark, its content will remain firm and delicious. Coating the banana with organic wax to prevent contact with the oxygen of the air can also slow down the blackening of the skin.
Another solution is to peel the bananas beforehand, put them in a sealed freezer bag and then storing them in the fridge. Coating them with little bit of fresh lemon juice can help to reduce its darkening process even more.
dude its easy it would obviously slow down
did this help?
Keeping things cool slows down reactions. For example you put meats and high risk foods in the fridge to slow down the bacteria and to prevent the action of microbes. Like in science to make a reaction happen faster you add heat to it, but this causes the reaction to happen faster but it also causes the unwanted reactions to happen faster, that's why people use a catalyst. But putting things in the fridge slows down these reactions and preserves them for later use.
it dies
Rate of reactions are used in many things in daily life. For example; - Enzymes: Enzymes are biological catalysts (substances with increase the rate of reactions). They quicken the rate at which food is broken down. - Washing Clothes: Temperature affects the rate of reactions. The higher the temperature the quicker the particles move. If they move quicker there is a bigger chance that they will collide (search the collision theory). This is why the temperature at which clothes are washed is important. There are enzymes in washing powder. They work well at a certain temperature, but when the temperature gets too hot, they do not work. The proteins that make up the enzyme are "denatured". (search how enzymes work) - Fridges Again, at a lower temperature the rate of reaction is less. So in a fridge reactions happen slower so foods rot slower (as rotting is also a chemical reaction) Hope this helps! I looked on the internet for this question too, but it doesn't help. I found these answers in the Chemistry for You book by Lawrie Ryan. They're really useful.
The formation of rust is a chemical change because the steel (iron) in the door has reacted with oxygen in the air to form a new substance called rust, which has properties different from the iron and the oxygen that reacted.
Rusting of a nail (usually iron) happens due to the reaction of the iron surface with water(moisture of surroundings) and oxygen(air).......Inside tapwater in the fridge there is too less amount of oxygen(1 of the reactants) available...So this reaction won't take place....and rust as a product wont be effectively formed....Therefore we can say that there is almost no rusting.....
If it's really an allergic reaction, it wouldn't matter if they were stored in the fridge. Just the food would cause the reaction. It's not a good idea to store anything in an opened can. The metal in the can causes reactions with some foods when air is introduced and it's possible that some of the reactions are toxic. If you have left over food from a can, transfer it to glass or plastic for storage.
Yes, indeed. Epoxy resin cures by chemical reaction. Any chemical reaction is speeded up when you heat it, but when you cool it in the fridge, the reaction slows way down!
Keeping things cool slows down reactions. For example you put meats and high risk foods in the fridge to slow down the bacteria and to prevent the action of microbes. Like in science to make a reaction happen faster you add heat to it, but this causes the reaction to happen faster but it also causes the unwanted reactions to happen faster, that's why people use a catalyst. But putting things in the fridge slows down these reactions and preserves them for later use.
I think it is chemical
A chemical reaction occurs when the conditions for a chemical reaction exist. Which is a really lame answer, so let's play with it. You want to make some water and carbon dioxide. You have some hexane, which is C6H14. If you set the hexane on fire, it will react with the oxygen in the air to produce carbon dioxide and water.
It will kill it.
What happens if I drink CRUSHA without putting it in the fridge
The fridge reacts with oxygen in the air, therefore creating rust. An example of a chemical property is ability to react with oxygen.
Nothing will happen, except the thermometer will show the fridge's interior temperature.
it dies
You crawl to the fridge and get a cold beer.
It is similar to eating half an apple and leaving it in the fridge for 14 days. Once it becomes in contact with the air in that state after packaging, chemical reactions like oxidization cause it to perish.