Distinguish between Physical and chemical weathering
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Answer:
ExplanationDifference Between Physical and Chemical Change
May 12, 2018 By Rachna C Leave a Comment
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Such changes which do not produces any new substances after the reaction is called as the physical change, whereas the changes which bring out the formation of new substance is named as the chemical change. So we can say that the main difference lies in the chemical composition, where one (chemical change) of the change is involved in altering the composition of the material and thus forms new substance and the other (physical change) brings out alteration in size, shape and colour only.
Change is a part of everyone’s life, whether its a plant, animal, microorganism or any non-living matter. As these changes apply to matter only. Anything which occupies space is called as matter and matter experiences both physical as well as chemical changes.
These changes are obvious and may happen suddenly or slowly or in series of steps. These changes are not bounded into the chemical laboratory only but occur everywhere. Although it is necessary for the one to know about these changes and with this, hereby we will be describing different aspects on which the physical and chemical changes can differentiate and few examples of them
Content: Physical Vs Chemical Change
Comparison Chart
Definition
Key Differences
Conclusion
Comparison Chart
BASIS FOR COMPARISON PHYSICAL CHANGE CHEMICAL CHANGE
Meaning Physical changes are those changes, where there is no change in the mass of the substance and even the internal properties of the molecules remain same. Such changes are temporary. These changes involves the transformation in different phases of matter like from solid to liquid; liquid to gas or vice versa. Chemical changes are those changes, where there is the formation of the new substance and such changes are permanent. There are the breaking and formation of new bonds to make the new compounds.
It affects It affects only physical properties of the material like size, colour and shape, etc. It affects physical as well as the chemical properties of the material.
Produces No new substance is formed, that means the molecules and atoms are arranged in the same way in products as were in reactants. Chemical changes always produce new substances, the atoms and molecules rearrange themselves and form a new compound.
Energy There is no energy production during physical changes. The energy is always required or produced in the form of light, heat or sound during the chemical changes.
Reversible/Irreversible Physical changes are generally reversible. Chemical changes are irreversible or some time reversible also.
Examples 1. Changing of ice into water or vice versa.
2. Tearing of paper.
3. Shaping the clay in different shapes.
4. Cutting a wooden pile.
5. Switching on/off electric equipment.
1. Digestion of food.
2. Burning of a matchstick, fuels.
3. Cooked or riped vegetables, fruits.
4. Getting old.
5. Formation of curd.
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Answer:
Physical Weathering
it is the disintegration of rock, mineral and soil aggressive by the mechanical process.
Chemical Weathering
it is the decomposition of rock, soil and other mineral by biochemical process.