Henri Regnault

Henri Regnault

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Credit: SCIENCE PHOTO LIBRARY

Caption: Henri Regnault. Portrait of Henri Victor Regnault, French physicist and chemist (1810-78). Regnault worked with Liebig and succeeded Gay-Lussac as professor of chemistry at the Ecole Polytechnique in Paris. In 1841, he became professor of physics in the College de France. Regnault studied aliphatic chloro-compounds and discovered vinyl chloride and other industrially important materials. He published a chemistry treatise in 1847. In physics, Regnault improved techniques for determining the specific heats of solids, liquids, and devised a method for gases. He was able to show how real gases deviate from the ideal gas laws and he measured the velocity of sound.

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Keywords: black-and-white, chemist, chemistry, french, fusion heat, gas, henri victor, liquid, monochrome, physicist, physics, portraits, regnault, scientist, solid, sound velocity, specific heats, surname r, vaporization, vinyl chloride discoverer

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