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In solution chemistry and biochemistry, the Gibbs free energy decrease (∂G/∂ξ, in molar units, denoted cryptically by ΔG) is commonly used as a surrogate for (−T times) the global entropy produced by spontaneous chemical reactions in situations where no work is being done; or at least no "useful" work; i.e., other than perhaps ± P dV.
The Commission on Higher Education (CHED; Filipino: Komisyon sa Mas Mataas na Edukasyon or Komisyon sa Lalong Mataas na Edukasyon) [2] is a government agency under the Office of the President of the Philippines. It is responsible for regulating and governing all higher education institutions and post-secondary educational programs in the country.
Chemistry education is important because the field of chemistry is fundamental to our world. The universe is subject to the laws of chemistry, while human beings depend on the orderly progress of chemical reactions within their bodies. [2] Described as the central science, chemistry connects physical sciences with the life sciences and applied ...
The PRC and CHED sometimes publish reports on these results. In 2009, CHED executive director Julito Vitriolo said that they are in the process of establishing appropriate guidelines to rank Philippine universities and colleges for each specific academic program or discipline. [29] As of June 2015, such rankings do not exist yet.
In organic chemistry, brosyl (or para-bromophenylsulfonyl) group is a functional group with the chemical formula BrC 6 H 4 SO 2 and structure Br−C 6 H 4 −SO 2 −R. This group is usually introduced using the compound brosyl chloride , BrC 6 H 4 SO 2 Cl , which forms sulfonyl esters and amides of p -bromophenylsulfonic acid .
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
A Chinese military helicopter flew within 10 feet (3 meters) of a Philippine patrol plane over the South China Sea on Tuesday, in what observers said was the second incident of potentially ...
In the school year 2008-09, the Bachelor of Elementary Education (BEEd) and the Bachelor of Secondary Education (BSEd) programs have been granted the Center of Excellence (COE) status after undergoing the stringent evaluation of the Commission on Higher Education (CHEd). The COE status lasted from June 2, 2008 until June 2, 2011.