Examlex
Distinguish the Hawthorne effect from the John Henry effect in experimental research.
IR Spectroscopy
An analytical technique that uses infrared light to study the vibrational and rotational movements of molecules, revealing structural and functional group information.
Pentane
A hydrocarbon compound with the molecular formula C5H12, consisting of five carbon atoms linked in a single chain.
Heptane
A straight-chain alkane with the formula C7H16, commonly used as a nonpolar solvent in laboratories.
IR Spectrum
An infrared spectrum, a graph displaying the absorption of infrared radiation by a substance at different frequencies, useful in identifying molecular structures.
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