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vapor pressure
(Encyclopedia)vapor pressure, pressure exerted by a vapor that is in equilibrium with its liquid. A liquid standing in a sealed beaker is actually a dynamic system: some molecules of the liquid are evaporating to f...tin
(Encyclopedia)tin, metallic chemical element; symbol Sn [Lat. stannum]; at. no. 50; at. wt. 118.710; m.p. 231.9681℃; b.p. 2,270℃; sp. gr. 5.75 (gray), 7.3 (white); valence +2 or +4. Tin exhibits allotropy; abov...tree
(Encyclopedia) CE5 Types of trees tree, perennial woody plant with a single main stem (the trunk, or bole) from which branches and twigs extend to form a characteristic crown of foliage. In general, a tree diffe...coke
(Encyclopedia)coke, substance obtained by the destructive distillation of bituminous coal. Coke bears the same relation to coal as does charcoal to wood. A hard, gray, massive, porous fuel, coke is the solid residu...Kamchatka
(Encyclopedia)Kamchatka kămchătˈkə [key], peninsula, 104,200 sq mi (269,878 sq km), Kamchatka Territory, Russian Far East, separating the Sea of Okhotsk in the west from the Bering Sea and the Pacific Ocean in ...tungsten
(Encyclopedia)tungsten tŭngˈstən [key] [Swed.,=heavy stone], metallic chemical element; symbol W; at. no. 74; at. wt. 183.84; m.p. about 3,410℃; b.p. 5,660℃; sp. gr. 19.3 at 20℃; valence +2, +3, +4, +5, or...Hunan
(Encyclopedia)Hunan ho͞oˈnänˈ [key] [south of the lake], province, c.80,000 sq mi (207,254 sq km), S ce...cysteine
(Encyclopedia) CE5 CE5 cysteine sĭsˈtēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of mammalian protein...Yunnan
(Encyclopedia)Yunnan or Yun-nan both: yünˈnän [key] [south of the clouds], province (2010 pop. 45,966,239), c.162,000 sq mi (419,600 sq km), SW China. It borders Myanmar on the west and Laos and Vietnam on the s...blood
(Encyclopedia)blood, fluid pumped by the heart that circulates throughout the body via the arteries, veins, and capillaries (see circulatory system; heart). An adult male of average size normally has about 6 quarts...Browse by Subject
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