what is the difference between physical and chemical process?
40627
The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
493330
As the names suggest, a physical change affects a substance's physical properties, and a chemical change affects its chemical properties. Many physical changes are reversible (such as heating and cooling), whereas chemical changes are often irreversible or only reversible with an additional chemical change.
1439824
The key difference between industrial chemistry and chemical engineering is that the industrial chemistry applies chemical and physical processes to convert raw materials into important products whereas the chemical engineering is a branch of engineering that designs the processes to produce, transform and transport ...
278639
Anything that involves only physical change is called unit operation whereas the ones that are accompanied by chemical reaction(s) are called unit processes. For ex: drying, evaporation, sieving, etc are unit operations.
761920
In a chemical change, a new substance is made, like when you burn a candle. In a physical change, no new substance is made, like when water turns to ice.
1321643
Physical properties are those that can be observed without changing the identity of the substance. Chemical properties are those that can be observed only when a substance is changed into a new substance. ... Chemical changes are changes that occur when one substance is turned into another substance.
480203
Physical & Chemical Properties. Physical properties are those that can be observed without changing the identity of the substance. ... Properties that describe how a substance changes into a completely different substance are called chemical properties.
619366
A physical property is an aspect that can be observed or measured without being changed. A chemical property may only be observed by changing the chemical identity or substance.
43682
Key Points. Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.
111173
The difference between industrial chemistry and chemical engineering is that industrial chemistry applies chemical and physical processes to convert raw materials into important products whereas chemical engineering is a branch of engineering that designs the processes to produce, transform and transport materials.
632194
In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition. Although we call them physical "reactions," no reaction is actually occurring.
1179759
In a physical change, the molecules are rearranged while their actual composition remains same. In a chemical change, the molecular composition of a substance completely changes and a new substance is formed. Some example of physical change are freezing of water, melting of wax, boiling of water, etc.
1087911
chemistry is branch of science deals with chemical properties of matter, physics is dealing with physical properties of matter, and biology deals with living organisms of living things, this is in brief, and you can see that in your daily living.
1080444
Physical changes are temporary and involve the transformation in different phases of matter like from solid to liquid; liquid to gas. Whereas chemical changes are permanent as it participates in the breaking and formation of new bonds to make the new compounds.
1148186
To better understand the differences between these processes, you must look at what exactly they convert. Manufacturing only converts tangible items, such as raw materials, into finished products. In comparison, production converts all types of input into finished products.
768469
A physical reaction occurs when molecules undergo a molecular rearrangement to produce a physical change. The molecules are not chemically altered. ... A chemical reaction occurs when molecules are chemically altered as a result of interacting with one another, such as their bonds breaking.
245310
Which is an example of a chemical change? Ans: A chemical transition is the result of a chemical reaction, whereas a physical change is when the structure of matter changes, but not the chemical identity. Burning, cooking, rusting, and rotting are examples of chemical changes.