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When Expressing Heat or Volume Generation, Why Use Negative Exponents Instead of Using a Denominator?
When expressing heat in J/g, why is it written as Jg^-1 instead of the J/g. Also, it is the same for expressing volume of gas generated cm^3g^-1 instead of Cm^3/g.
Is there a reason for that other than not having a denominator?
Lastly if you can explain QV (heat per unit volume) and how it relates to this, it would be appreciated.
Thank you
1 Answer
- dawonzcherLv 58 years agoFavorite Answer
I think, one reason for preferring the use of negative exponent over the denominator is because it is much simpler and shorter to write-- time efficient--especially when involving numbers larger than 6 digits. e.g. 1 / 1,000, 000 over the 1x10^-6, (1/ avogadro`s number) over the (1x6.023x10~23).
For the 2nd question, QV, has no relation to that because, QV is only a symbol for the whole phrase "heat per unit volume for easy reference. It does not relate to its formula.