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What is the connection between spontaneous reactions and free energy?
Spontaneous reactions release free energy. If a reaction is spontaneous, it means that it can occur without outside intervention because the products are at a lower energy state than the reactants, and the excess energy is released as free energy. The change in free energy (ΔG) for a spontaneous reaction is negative.
What is the difference between exothermic and exergonic reactions?
An exothermic reaction releases heat energy to the surroundings, while an exergonic reaction releases free energy. Both types of reactions involve the release of energy, but exothermic reactions specifically involve the release of heat.
What chemical reaction release thermal energy?
only nuclear reactionsChemical reactions that release free energy are called exergonic reactions. Fire and cellular respiration are examples of exergonic reactions.
What is the difference between Gibbs free energy and standard free energy, and how do they relate to each other in chemical reactions?
Gibbs free energy and standard free energy are both measures of the energy available to do work in a chemical reaction. The main difference is that Gibbs free energy takes into account the temperature and pressure of the system, while standard free energy is measured under specific standard conditions. In chemical reactions, the change in Gibbs free energy determines whether a reaction is spontaneous or non-spontaneous. If the Gibbs free energy change is negative, the reaction is spontaneous, while a positive change indicates a non-spontaneous reaction. The relationship between Gibbs free energy and standard free energy lies in the fact that the standard free energy change can be used to calculate the Gibbs free energy change under any conditions.
Which of the following is true for all exergonic reactions?
the reactants have more total energy than the products.
Which part of the ATP molecule breaks free of the rest when an ATP molecule is used for energy?
The phosphate group is the part of the ATP molecule that breaks free when ATP is used for energy, converting ATP to ADP (adenosine diphosphate). This release of the phosphate group provides the energy needed for cellular processes.
What the free energy will be if the temperature is kept uniform in a system?
If the temperature is kept uniform in a system, the free energy will remain constant. Free energy, also known as Gibbs free energy, depends on temperature and is a measure of the system's ability to do work. When the temperature is held constant, there is no change in the free energy of the system.
Why are endothermic reactions rare?
Chemical reactions occur spontaneously when the free energy of the product is less than the free energy of the reactants. Free energy is a combination of thermal energy (heat) and entropy. If thermal energy is absorbed during a reaction, there must be an exceptionally large increase in entropy to give a net reduction in free energy.
Does sugar free mean energy free?
No
What represents the difference between the free energy content of hte reaction and the free energy content of the products?
The Gibbs free energy change (∆G) of a reaction represents the difference between the free energy content of the reactants and the free energy content of the products. A negative ∆G indicates that the reaction is spontaneous and can proceed without requiring external energy input.
What is an inexpensive energy resource?
There are some energy sources, such as wind energy, solar energy, and geothermal energy, that are available in abundance - basically for free. But please note that there is always a cost to convert such energy types into something useful. The energy is free; converting it into useful energy to run machinery is not free.
Does glycolisis release energy?
Yes it release energy of glucose.This energy is stored in ATP.
