Help with Thermodynamics and Energetics - GRE Subject Test: Biochemistry, Cell, and Molecular Biology
Card 0 of 4
Which of the following statements is not true regarding Gibbs free energy, 
?
Which of the following statements is not true regarding Gibbs free energy,
If the 
of a reaction is less than zero, the reaction will in fact be exergonic. These reactions will be favorable and spontaneous, and energy is released in these reactions. Thus, endergonic is incorrect.
If the
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The equilibrium constant 
of any given chemical reaction is __________ on the temperature and pressure of the reactants and products and is __________ of the reaction rate.
The equilibrium constant
The temperature and pressure of the reactants and products of any given reaction will determine the value of 
. However, this is entirely dependent of the reaction rate, which is determined by how the concentrations of the reactants and products change over the course of the reaction. Additionally, every reaction is unique, so "one-half" or any other exact metric cannot be applied as the definition.
The temperature and pressure of the reactants and products of any given reaction will determine the value of
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Which of the following best describes a reaction that has reached equilibrium?
Which of the following best describes a reaction that has reached equilibrium?
In equilibrium, both the forward and reverse reactions continue to occur, but they do so in a way that is equal and thus, there is no net change of reactants and products in the system. 
is zero in this case because net changes to the system have ceased, and thus the free energy is no longer in flux.
In equilibrium, both the forward and reverse reactions continue to occur, but they do so in a way that is equal and thus, there is no net change of reactants and products in the system.
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__________ reactions have a 
that is less than zero, and thus they occur spontaneously. This is because the products in these reactions have lower bond energies than the reactants, and when that energy is released it is converted to __________.
__________ reactions have a
Exothermic reactions release heat (think exothermic = explosion = creates heat), and this is due to the release of energy from the reactant bonds. These reactions have 
less than zero. Endothermic reactions are just the opposite and actually require energy to occur, and therefore do not occur spontaneously nor release heat.
Exothermic reactions release heat (think exothermic = explosion = creates heat), and this is due to the release of energy from the reactant bonds. These reactions have
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