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#2: Post edited
by
JRN
·
2021-07-03T10:10:59Z (almost 3 years ago)
- If we add 1000 g of ethanol to 18 g of ethanol, the result has a weight of 1018 g.
- If we add 1000 mL of water to 18 mL of water, the result has a volume of 1018 mL.
A person who focuses on the abstract (and not the concrete) would only look at 1000+18=1018 ("the struts and nails"); the other details (the unit of measurement, the chemical composition of the object) (the "upholstery" or the stuffing) do not matter.- If you ask such a person what happens if 1000 mL of ethanol were added to 18 mL of water, they would say that the result has a volume of 1018 mL. But someone who is familiar with [partial molar properties](https://en.wikipedia.org/wiki/Partial_molar_property) would know that the result has a volume of 1014 mL (at 25 degrees celsius).
- In this case, abstraction (Wald's approach) would lead to ignoring the chemical composition of the objects, which in this case really matters.
- If we add 1000 g of ethanol to 18 g of ethanol, the result has a weight of 1018 g.
- If we add 1000 mL of water to 18 mL of water, the result has a volume of 1018 mL.
- A person who focuses on the abstract (and not the concrete) would only look at 1000+18=1018 (the "struts and nails"); the other details (the unit of measurement, the chemical composition of the object) (the "upholstery" or the stuffing) do not matter.
- If you ask such a person what happens if 1000 mL of ethanol were added to 18 mL of water, they would say that the result has a volume of 1018 mL. But someone who is familiar with [partial molar properties](https://en.wikipedia.org/wiki/Partial_molar_property) would know that the result has a volume of 1014 mL (at 25 degrees celsius).
- In this case, abstraction (Wald's approach) would lead to ignoring the chemical composition of the objects, which in this case really matters.
#1: Initial revision
by
JRN
·
2021-07-03T10:09:58Z (almost 3 years ago)
If we add 1000 g of ethanol to 18 g of ethanol, the result has a weight of 1018 g.
If we add 1000 mL of water to 18 mL of water, the result has a volume of 1018 mL.
A person who focuses on the abstract (and not the concrete) would only look at 1000+18=1018 ("the struts and nails"); the other details (the unit of measurement, the chemical composition of the object) (the "upholstery" or the stuffing) do not matter.
If you ask such a person what happens if 1000 mL of ethanol were added to 18 mL of water, they would say that the result has a volume of 1018 mL. But someone who is familiar with [partial molar properties](https://en.wikipedia.org/wiki/Partial_molar_property) would know that the result has a volume of 1014 mL (at 25 degrees celsius).
In this case, abstraction (Wald's approach) would lead to ignoring the chemical composition of the objects, which in this case really matters.