A. freezing point B. boiling point C. melting point D. cooling point 相关知识点: 试题来源: 解析 A。解析:freezing point是冰点,这里说汞的冰点是 - 38.83 °C,意思是汞在这个温度以下会变成固体。B选项boiling point是沸点。C选项melting point是熔点。D选项cooling point不是一个正确的表示这种概念的...
mercury freezing test 水银冷冻试验 freezing test 冰点的测定,冰冻试验,人工低温测定 freezing and thawing test 冻融试验 freezing thawing test 冻融试验 freezing point test 冰点试验 thawing and freezing test 融冻试验 freezing thawing test 冻融试验 mercury test (测应力腐蚀) 水银试验 freezing...
silver-white, toxic metallic element, liquid at room temperature: used in barometers, thermometers, pesticides, pharmaceuticals, mirror surfaces, and as a laboratory catalyst; quicksilver.Symbol:Hg;at. wt.:200.59;at. no.:80;sp. gr.:13.546 at 20°C;freezing point:−38.9°C;boiling point:357...
Mercury definition: a heavy, silver-white, highly toxic metallic element, the only one that is liquid at room temperature; quicksilver: used in barometers, thermometers, pesticides, pharmaceutical preparations, reflecting surfaces of mirrors, and dental
The Greek name for it washydrargyros"liquid silver," which gives the element its symbol,Hg. Comparequicksilver, which is its popular name. It has a freezing point of -39° C. The use of the word in reference to temperature or state of the atmosphere (by 1756) is from its use in the...
(2) The Freezing point ≤ 0ºC (3) Viscosity at 30 degrees Celsius is 2mPa.s~5mPa.s (4) Volume expansion coefficient is 1x10-4K-1~2x10-4K-1 3.Stabilization of test conditions The technical performance of all instrument tools shall be in accordance with the requirements ...
Melting point/freezing point -38.829 °C, -37.892 °F [1] Boiling point 356.619 °C, 673.914 °F [1] Density 13.5336 g cm-3 [1] State of matter at room temperature (solid/liquid/gas) Liquid [1, 7] Thermal (heat) conductivity 8.3 W/(m K) [10] Specific heat 140 J kg-1 K-1...
The stability and reproducibility of the temperatures of the mercury freezing (MFP) and melting (MMP) phase transitions and the phase equilibrium, the mercury triple point (MTP), were studied under different reproduction conditions to determine the characteristics of a given temperature bench mark. A...
(2) The Freezing point ≤ 0ºC (3) Viscosity at 30 degrees Celsius is 2mPa.s~5mPa.s (4) Volume expansion coefficient is 1x10-4K-1~2x10-4K-1 3.Stabilization of test conditions The technical performance of all instrument tools shall be in accordance with ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook mercury-vapor lamp (redirected fromHigh pressure mercury lamp) Thesaurus Encyclopedia mer′cury-va`por lamp` n. a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc...