Waiting
Login processing...

Trial ends in Request Full Access Tell Your Colleague About Jove
פרק 17
ספונטניות
A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless…
אנתרופיה
Salt particles that have dissolved in water never spontaneously come back together in solution to reform solid particles. Moreover, a gas that has…
החוק השני של התרמודינמיקה
In the quest to identify a property that may reliably predict the spontaneity of a process, a promising candidate has been identified: entropy.…
החוק השלישי של התרמודינמיקה
A pure, perfectly crystalline solid possessing no kinetic energy (that is, at a temperature of absolute zero, 0 K) may be described by a single…
שינוי אנתרופיה סטנדרטי עבור תגובה
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in…
האנרגיה החופשית של גיבס
One of the challenges of using the second law of thermodynamics to determine if a process is spontaneous is that it requires measurements of the…
השפעות הטמפרטורה על האנרגיה החופשית
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction…
חישוב שינויי אנרגיה חופשית סטדנרטיים
The free energy change for a reaction that occurs under the standard conditions of 1 bar pressure and at 298 K is called the standard free energy…
שינויי אנרגיה חופשית עבור מצבים לא סטנדרטיים
The free energy change for a process taking place with reactants and products present under nonstandard conditions (pressures other than 1 bar;…
אנרגיה חופשית ושיווי משקל
The free energy change for a process may be viewed as a measure of its driving force. A negative value for ΔG represents a driving force for the…
תרמודינמיקה של קיפול חלבונים ממברנה נמדד על ידי הקרינה ספקטרוסקופיה
Membrane protein folding is an emerging topic with both fundamental and health-related significance. The abundance of membrane proteins in cells…
האצת entropic דרג להתיר מושרה על ידי Dynamics מרכך בממברנה אנזימים
Enzyme catalysis evolved in an aqueous environment. The influence of solvent dynamics on catalysis is, however, currently poorly understood and…
היווצרות של מבני Biomolecular הוזמנו על ידי ההרכבה העצמית של פפטידים קצרים
In nature, complex functional structures are formed by the self-assembly of biomolecules under mild conditions. Understanding the forces that control…

Get cutting-edge science videos from JoVE sent straight to your inbox every month.

Waiting X
Simple Hit Counter