Significant Physical/Chemical Change Found by Sign Reversal?

In summary, according to Randall D. Knight in Physics for Scientists and Engineers, the charges of "plastic" and "glass" were arbitrarily assigned to be negative and positive, while the charges of electrons and protons were based on this assignment. There would be no significant difference in calculations if protons were considered negative and electrons positive, as the selection of sign was arbitrary.
  • #1
Silverhobbiest
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We know that "plastic" and "glass" charges were arbitrarily assigned to be negative and positive respectively, and electrons and protons were given their charges based upon that assignment (According to Randall D. Knight in Physics for Scientists and Engineers). I am curious if any significant physical or chemical changes would occur in calculations if we considered protons to be negative and electrons positive. Or would the only difference be simply yielding negative numbers in calculation?
 
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  • #2
No significant difference. The selection of sign was purely arbitrary.
 
  • #3
Silverhobbiest said:
We know that "plastic" and "glass" charges were arbitrarily assigned...
If you know that the choice was arbitrary, what significant physical or chemical changes do you expect?
 
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1. What is a significant physical/chemical change found by sign reversal?

A significant physical/chemical change found by sign reversal refers to a change in a substance or system that results in a reversal of the sign of a particular physical or chemical property. This can include changes in color, temperature, state of matter, or chemical composition.

2. How is a significant physical/chemical change found by sign reversal different from other types of changes?

A significant physical/chemical change found by sign reversal is different from other types of changes because it specifically involves a reversal of a particular property, rather than a general change in the substance or system. This type of change can also be used to identify and differentiate between different substances.

3. What are some examples of significant physical/chemical changes found by sign reversal?

Examples of significant physical/chemical changes found by sign reversal include the change in color of litmus paper when exposed to an acidic or basic solution, the change in state of water from liquid to solid (freezing) or liquid to gas (boiling), and the change in temperature of a substance during a chemical reaction.

4. How is the concept of significant physical/chemical change found by sign reversal used in scientific research?

The concept of significant physical/chemical change found by sign reversal is used in scientific research to identify and analyze changes in substances or systems. This can help scientists understand the properties and behavior of different substances, as well as develop new materials and processes.

5. Can significant physical/chemical changes found by sign reversal be reversed?

In most cases, significant physical/chemical changes found by sign reversal cannot be reversed. These changes typically involve a fundamental alteration in the substance or system, rather than a temporary or reversible change. However, some changes may be reversible under certain conditions, such as melting and solidifying of a substance.

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