英语词汇“molar refractivity”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

molar refractivity

Physical Chemical

noun

A quantity calculated from a function of the refractive index of a substance multiplied by its molecular weight and divided by its density, which can be taken as a measure of the volume occupied by a molecule of the substance.

The function of the refractive index is now usually expressed as n 2 − 1/n 2 + 1, where n is the refractive index, so that the molar refractivity is n 2 − 1/n 2 + 1 × M/d.The concept originated with J. H. Gladstone and T. P. Dale in 1863, who introduced the quantity n − 1/d, calling it ‘specific refractive energy’ (Philos. Trans. (Royal Soc.) 153 320)..

Origin

1920s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America.

单词	molar refractivity
释义	molar refractivity Physical Chemical noun A quantity calculated from a function of the refractive index of a substance multiplied by its molecular weight and divided by its density, which can be taken as a measure of the volume occupied by a molecule of the substance. The function of the refractive index is now usually expressed as n 2 − 1/n 2 + 1, where n is the refractive index, so that the molar refractivity is n 2 − 1/n 2 + 1 × M/d.The concept originated with J. H. Gladstone and T. P. Dale in 1863, who introduced the quantity n − 1/d, calling it ‘specific refractive energy’ (Philos. Trans. (Royal Soc.) 153 320).. Origin 1920s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America.
随便看	Tpr TPS TPV TQA TQC TQM TR tr. traagu trabeated trabeation trabecula trabecular trabeculate Trabzon tracasserie trace traceability traceable trace element trace fossil trace-horse traceless trace mineral tracer