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에너지 기초
Chemical reactions, such as those that occur when you light a match, involve changes in energy as well as matter. Chemical changes and their…
열역학 제1법칙
Energy can be converted from one form into another, but all of the energy present before a change occurs always exists in some form after the…
내부에너지
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with…
열의 수량화
Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative…
일의 수량화
As a system undergoes a change, its internal energy can change, and energy can be transferred from the system to the surroundings, or from the…
엔탈피
Chemists ordinarily use a property known as enthalpy (H) to describe the thermodynamics of chemical and physical processes. Enthalpy is defined as…
열화학 반응식
For a chemical reaction (the system) carried out at constant pressure – with the only work done caused by expansion or contraction – the…
일정 압력 열 계량법
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or…
일정 부피 열 계량법
Calorimeters are useful to determine the heat released or absorbed by a chemical reaction. Coffee cup calorimeters are designed to operate at…
헤스의 법칙
There are two ways to determine the amount of heat involved in a chemical change: measure it experimentally, or calculate it from other…
표준 생성 엔탈피
Enthalpy changes are typically tabulated for reactions in which both the reactants and products are at the same conditions. A standard state is a…
반응 엔탈피
Hess’s law can be used to determine the enthalpy change of any reaction if the corresponding enthalpies of formation of the reactants and…
핫 생물 촉매 : 등온 적정 열량 효소 반응의 특성을
Isothermal titration calorimetry (ITC) is a well-described technique that measures the heat released or absorbed during a chemical reaction, using it…
기전력 기술을 사용 하 여 알칼리 성 지구-액체 금속 합금의 열역학 속성의 결정
A novel electrochemical cell based on a CaF2 solid-state electrolyte has been developed to measure the electromotive force (emf) of binary alkaline…
<em>ab initio</em> 열화학에서 분자 클러스터의 대기 농도 계산
The computational study of the formation and growth of atmospheric aerosols requires an accurate Gibbs free energy surface, which can be obtained…

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