There are two ways to maintain free energy from equalling to zero. First the products of one reaction become reactants of the next. Secondly since the cell is compartmentalized therefore opposite reactions can occur at the same time in different places.
If the Gibbs free energy is close to zero, the reaction is close to equilibrium.
Zero, if you mean what is the free energy change.
Yes, at equilibrium, the standard Gibbs free energy change (G) is equal to zero.
In the case of a free electron, there is no external force acting on the electron, so no work is done to displace it. Since potential energy is associated with work done in displacing an object against a force, the potential energy of a free electron is considered to be zero.
First we need to ask what you mean by a matrix equalling a number? A matrix is a rectangular array of numbers all of which might be zero and this is called the zero matrix. We can take the determinant of a square matrix such as a 3x3 and this may be zero even without the entries being zero.
Once the object has reached the ground, its kinetic energy is zero.
Newton's 1st Law of Motion states that an object will maintain its speed when there is no net force acting on it. The question refers to free space and constant velocity -- the net force has to be zero. =========================
The value of ΔG at the melting point is zero for a substance undergoing a phase transition because it is the point of equilibrium where the free energy of the solid phase equals the free energy of the liquid phase.
The force required to maintain an object at a constant velocity in free space is equal to zero, as there are no opposing forces to change the object's motion. This is in accordance with Newton's first law of motion, which states that an object in motion will remain in motion with constant velocity unless acted upon by an external force.
kinetic energy is zero when the body is at rest.
Since the question seems to be about reactions - and the whole idea of a reaction is that something is changing... The CHANGE in Gibbs free energy will always be positive for a spontaneous reaction. As far as whether the Gibbs free energy of a system (without the term "change" attached) ... Since Gibbs free energy is a state function, it is always defined relative to a standard state. Asking if the Gibbs free energy is positive is akin to asking how "high" something is - the answer depends on where you define zero to be. If you define 0 height to be the level of the ground you are standing on, you will get a different answer than if you define zero height to be "sea level". A cactus in Death Valley may have a positive height relative to the ground, but would actually have a negative height relative to sea level. Likewise, the Gibbs free energy of a system will be positive or negative (or zero) depending on what you define as the standard state.
I think so. It is either zero in sugar, or zero in caffeine. But i believe it is sugar that it is free of. :) but it is allso free of caffine