Chemical energy in daily life
Chemical Energy Examples and Explanations
Example-chemical-energy
One example of chemical energy that we can encounter day-to-day is found in cold packs or cold compresses. It consists of two bags, one of which is water. Inside the bag there is the content of ammonium nitrate, calcium nitrate or urea used for sports purposes.
When the side of the bag is damaged and filled with water, water will act with ammonium nitrate grains and create new chemical bonds during the reaction to absorb energy from the environment. If we put this compress on our hot body part, then the heat will be absorbed by this compress and the body we compress by using this tool will instantly cool.
Another example of chemical energy is in a gas cylinder and a stove. Of course we all at home have stoves and gas for cooking. The propane gas tube in the gas cylinder we have is a chemical energy source that will be converted into heat energy.
When the propane gas is burned for cooking on the grill, the chemical energy stored in the propane molecule bonds will be damaged and will release heat for cooking. The color of the stove using propane gas usually has a bright blue color and there orange color. Examples of breaking the bonds of atoms and releasing heat can also be said to be chemical energy.
Examples of Useful Chemical Energy for Us
Another example of chemical energy is that we can find it around fire and wood burning. When wood burns, chemical energy stored in the bonds of wood molecules will release heat and light. The heat radiating around the graceful fire is called radiation. Radiation itself is also included in the sub-discussion of chemical energy.
There is another example that is more simple process of photosynthesis. Energy from the sun will be converted into chemical energy stored in the bonds of carbohydrates so that plants can make food. This process of photosynthesis is not only found in flowers, but other plants such as rice, corn, and jackfruit also go through the process of photosynthesis before being able to produce fruit.
We can find a variety of cases involving chemical energy in it. The process of digesting food in our bodies is also a chemical reaction. The food we eat will be converted into energy by our digestive system, which in turn will not need to be discharged through feces. That's some kind of chemical energy examples around us and may be useful for us all.
How is the propane gas combustion reaction?
BalasHapusC3H8 propane gas combustion with excess Oxygen gas produces carbon dioxide and water vapor. Write down the equation of the reaction!
HapusC3H8 + O2 -> CO2 + H2O (unequal reaction)
The first stage: set the number of C atoms (left 3, right 1), so that the amount is equal to the left, then the equation of the reaction becomes:
C3H8 + O2 -> 3 CO2 + H2O
Second stage: discuss the number of H atoms (left 8, right 2), so that the amount is equal to the left, then the reaction equation becomes:
C3H8 + O2 -> 3 CO2 + 4 H2O (4 x 2 H at H2O)
Third stage: set the number of O atoms (left 2, right 3 x 2 O atoms in CO2, and 4 x 1 O at H2O
So that it becomes 10), in order that the amount is equal to the left, then the equation of the reaction becomes:
C3H8 + 5 O2 -> 3 CO2 + 4 H2O (5 x 2 O at O2)
From the above three stages can be written equation of the equivalent reaction as follows:
C3H8 + 5 O2 -> 3 CO2 + 4 H2O
Lastly add the form of each substance, so it becomes:
C3H8 (g) + 5 O2 (g) -> 3 CO2 (g) + 4 H2O (g)
Why in your article, you say that Radiation itself is also included in the sub-discussion of chemical energy?
BalasHapusRadiation describes every process in which energy moves through media or through space, and is eventually absorbed by other objects. Ordinary people often associate the word ionization radiation (eg, as with nuclear weapons, nuclear reactors, and radioactive substances), but can also refer to electromagnetic radiation (ie radio waves, infrared light, visible light, ultraviolet light, and X- Ray), acoustic radiation, or for other more obvious processes. What makes the radiation is that the energy emits (ie, moves outward in a straight line in any direction) from a source. This geometry naturally leads to the measurement system and the same physical unit applies to all types of radiation. Some radiation can be harmful.
HapusEka, please explain in detail why the process of digesting food in our body is also a chemical reaction.
BalasHapusChemical digestion, is the process of changing food from complex substances into simpler substances with enzymes, which occur from the mouth, stomach, and intestines. Enzymes are chemicals produced by the body that accelerate chemical reactions in the body.
HapusThe process of digesting food in humans involves digestion of food. The digestive tools of food in humans are the organs of the body that digest the food we eat. Food digestion tool is divided into digestive tract and gastrointestinal gland
Mouth, teeth
When we eat something, we'll getting energy. Could you explain about it?
BalasHapusChemical Energy
HapusThe foods we eat contain chemical energy, so do the drinks we drink. The chemicals contained in these foods and drinks can produce chemical energy because in our body is actually a chemical reaction that changes the substances contained in food into energy. Gas, gasoline, diesel, coal, and kerosene are also sources of chemical energy. If examples of these energy sources are reacted, they can produce energy.
can you explain about digestive system?
BalasHapusUnderstanding Digestive System In Humans
HapusThe digestive system is a system that processes food changes and absorbs nutrients in the form of nutrients needed by the body. The digestive system will also break down complex food molecules into simple molecules with the help of enzymes that are easily digested by the body.
Digestive system in humans is almost the same as the digestive system of other animals that have mouth, stomach, intestines, and remove the dirt through the anus. Digestive process in humans divided into 5 kinds:
1.1 Injesti
Is the process of putting or putting food in the mouth. Usually using hands or using tools such as spoons, forks, chopsticks, and so forth.
1.2. Mechanical Digestion
Mechanical digestion process is the process of changing food into small and soft. Mechanical digestion is performed by the teeth and other aids such as pebbles in pigeons. This process aims to help to simplify the process of chemical digestion. This process is done consciously or in accordance with our wishes.
1.3 Chemical Digestion
The process of chemical digestion is the process of converting molecules of complex food substances into simpler molecules that are easily digested. Chemical digestion is carried out by enzymes, acids, 'bile', and water. This process is done unconsciously because it regulates it is an enzyme.
1.4. Absorption
Absorption is the movement of nutrition from the digestive system to the circulatory system and 'lymphatic capallaries' through osmosis, active transport, and diffusion.
1.5. Removal
That is the removal / disposal of undigested material from the digestive tract through defecation.
Energy from the sun will be converted into chemical energy stored in the bonds of carbohydrates so that plants can produce food. What chemical processes accompany these reactions?
BalasHapusThe above reaction relationship with aerobic respiration. Aerobic respiration is a catabolime reaction that requires an aerobic atmosphere with a process of the presence of much needed oxygen that produces energy in the chemical form (ATP). ATP energy is used by cells in the body of living things to support growth, movement, transportation, reproduction and other activities. The reaction is:
Hapus{CH2O} + O2 → CO2 + H2O (Rizald M.R, 1998: 21)
Carbon dioxide carbohydrate
So the relation of the above reaction with aerobic respiration is the same as decomposing macromolecules (organic compounds) into carbon dioxide by different reaction paths using an anaerobic condone and bacterial aid and the other using oxygen. Carbon dioxide is released back into the atmosphere as CO2 .