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How can the concentration of electrons and holes remain constant at a particular temperature?
The holes and electrons, together, can be found particularly in tetravalent elements like Si and Ge. It is experimentally verified that at -2730K temperature, that is at absolute zero temperature, such elements behave like a perfect insulators.
Now when temperature increases, some of the valence electrons escape into conduction band, producing a vacancy at their respective places. These vacancies are known as holes. Thus the number of hole-electron pairs always remain constant. Thus the concentration of electrons and holes remain constant at any temperature.
What else can I help you with?
Does ksp change with concentration?
No, the solubility product constant (Ksp) does not change with concentration. It is a constant value that represents the equilibrium between an ionic solid and its ions in a saturated solution at a given temperature.
What must be held constant when testing the effect enzyme concentration on enzyme activity?
temperature,pH and substrate concentration
Anyone know anything about homeostasis?
Homeostasis is the process of maintaining a constant internal environment and when it comes to living organisms, it can mean the maintenance of a constant temperature, pH, and chemical concentration.
What stays constant at equilibrium?
At equilibrium, the concentration of reactants and products remains constant, as the rates of the forward and reverse reactions are equal. The equilibrium constant (K) also remains constant at a specific temperature. The Gibbs free energy of the system is at a minimum but remains constant at equilibrium.
How is the Kw constant developed?
The Kw constant is derived from the auto-ionization of water, where water molecules can transfer a proton to each other to form hydronium and hydroxide ions. The equilibrium constant for this reaction is the Kw constant, which is the product of the concentrations of hydronium and hydroxide ions in water at a given temperature.
What variables are held constant in osmosis and diffusion?
In osmosis, the concentration gradient, temperature, pressure, and size of the particles are typically held constant. In diffusion, the concentration gradient, temperature, size of the particles, and medium in which diffusion is occurring are commonly kept constant.
On what does the rate constant depend?
The rate constant depends on factors such as temperature, concentration of reactants, and presence of a catalyst.
What statement is true for all equilibrium systems?
In an equilibrium system, the rates of the forward and reverse reactions are equal, leading to a constant concentration of reactants and products. At equilibrium, there is no net change in the concentration of substances involved in the reaction. The equilibrium constant, K, remains constant at a given temperature for a particular reaction.
What effects the rate constant of a reaction?
The temperature of the system
Does ksp change with concentration?
No, the solubility product constant (Ksp) does not change with concentration. It is a constant value that represents the equilibrium between an ionic solid and its ions in a saturated solution at a given temperature.
Which concentration unit is independent of temp?
Molarity (M) is a concentration unit that is independent of temperature, as it is based on the moles of solute per liter of solution. This means that the concentration remains constant regardless of changes in temperature.
What must be held constant when testing the effect enzyme concentration on enzyme activity?
temperature,pH and substrate concentration
How do you differentiate between reaction rate and specific rate constant?
The reaction rate is the rate at which the moles of substance change that varies with both temperature and concentration of the reactants. The specific rate constant is a proportionality constant that will vary only with temperature.
Which is Concentration term independent temperature?
For ideal gases, the partial pressure term in equilibrium constant expressions is independent of temperature. This means that the concentration term for ideal gases is independent of temperature, assuming the ideal gas law holds true.
On what factors is the rate constant k dependent?
The rate constant k is dependent on factors such as temperature, concentration of reactants, presence of catalysts, and the nature of the reaction mechanism.
What is the formula of density of air at particular Temp?
from the equation of state pressure = density * gas constant * temperature
Anyone know anything about homeostasis?
Homeostasis is the process of maintaining a constant internal environment and when it comes to living organisms, it can mean the maintenance of a constant temperature, pH, and chemical concentration.
