Search results
Results from the WOW.Com Content Network
Hydrochloric acid is a strong inorganic acid that is used in many industrial processes such as refining metal. The application often determines the required product quality. [25] Hydrogen chloride, not hydrochloric acid, is used more widely in industrial organic chemistry, e.g. for vinyl chloride and dichloroethane. [8]
Simplified control circuit of human thermoregulation. [8]The core temperature of a human is regulated and stabilized primarily by the hypothalamus, a region of the brain linking the endocrine system to the nervous system, [9] and more specifically by the anterior hypothalamic nucleus and the adjacent preoptic area regions of the hypothalamus.
Most hydrogen chloride is consumed in the production of hydrochloric acid. It is also used in the production of vinyl chloride and many alkyl chlorides. [13] Trichlorosilane, a precursor to ultrapure silicon, is produced by the reaction of hydrogen chloride and silicon at around 300 °C. [18] Si + 3 HCl → HSiCl 3 + H 2
Gastric acid or stomach acid is the acidic component – hydrochloric acid of gastric juice, produced by parietal cells in the gastric glands of the stomach lining. In humans, the pH is between one and three, much lower than most other animals, but is very similar to that of carrion eating carnivores, needing protection from ingesting pathogens ...
Aqua regia (/ ˈ r eɪ ɡ i ə, ˈ r iː dʒ i ə /; from Latin, "regal water" or "royal water") is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. [ b ] Aqua regia is a fuming liquid.
High-temperature chlorination: H 3 C−CH 3 + 2 Cl 2 → H 2 C=CHCl + 3 HCl. High-temperature oxychlorination, which uses oxygen and hydrogen chloride in place of chlorine: H 3 C−CH 3 + O 2 + HCl → H 2 C=CHCl + 2 H 2 O. High-temperature oxidative chlorination: 4 H 3 C−CH 3 + 3 O 2 + 2 Cl 2 → 4 H 2 C=CHCl + 6 H 2 O
The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution of the fat and skin is approximately 24%. The specific heat of tissues range from ~0.7 kJ · kg−1 · °C−1 for tooth (enamel) to 4.2 kJ · kg−1 · °C−1 for eye (sclera). [13]
L C = characteristic length, which is commonly defined as the volume of the body divided by the surface area of the body, such that = /, k b = thermal conductivity of the body. The physical significance of Biot number can be understood by imagining the heat flow from a hot metal sphere suddenly immersed in a pool to the surrounding fluid.