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If a catalyst is added to a system at equilibrium and the temperature and pressure remain constant?
The catalyst will accelerate the forward and reverse reactions equally, therefore not changing the position of the equilibrium. This results in the system reaching a new equilibrium faster but with the same concentrations of reactants and products as before the catalyst was added.
If a liquid is sealed in a container and kept constant temperature how does its vapor pressure change over time?
If a liquid is sealed in a container at a constant temperature, its vapor pressure will initially increase until it reaches a steady state, known as equilibrium. At this point, the rate of evaporation of the liquid equals the rate of condensation of the vapor, resulting in a constant vapor pressure. Once equilibrium is achieved, the vapor pressure remains stable over time, as long as the temperature remains constant and no additional liquid is added or removed.
What ways can equilibrium be shifted?
Equilibrium can be shifted by changing the concentration of reactants or products, adjusting the temperature, altering the pressure (for gases), or adding a catalyst. By changing these factors, the equilibrium position can be shifted towards either the products or the reactants to favor the desired reaction.
Does an increase in pressure at constant temperature increase the rate constant of a reversible reaction in both directions?
The rate constant is unaffected, as demonstrated by Arrhenius equation: k = Ae^(-E/RT) where A is the pre-exponential factor (constant for a particular reaction) E is the activation energy R is the molar gas constant T is the thermodynamic temperature However, when pressure is increased at constant temperature for a gaseous reversible reaction, the concentrations of every reactant and product increase by the SAME factor. Since Kp (pressure equilibrium constant) is to remain constant, it means that the position of equilibrium will shift in such a way so as to decrease the total number of moles of gaseous species. Note: This answer can be improved by proving the last statement using a general example which, due to lack of time, I skipped. (Although some people might get the logic!!!)
What states that the solubility of gas is directly proportional to its pressure at a constant and specific temperature?
Henry's Law:At a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the Partial_pressureof that gas in equilibrium with that liquid.
If a catalyst is added to a system at equilibrium and the temperature and pressure remain constant?
The catalyst will accelerate the forward and reverse reactions equally, therefore not changing the position of the equilibrium. This results in the system reaching a new equilibrium faster but with the same concentrations of reactants and products as before the catalyst was added.
Vapor pressure is measured when a liquid and its vapor are?
in a state of dynamic equilibrium at a constant temperature. At this point, the rate of vaporization equals the rate of condensation, resulting in a constant pressure above the liquid known as the vapor pressure.
Is it true that an equilibrium constant is not changed by a change in pressure?
Yes, it is true that an equilibrium constant is not changed by a change in pressure.
What is the temperature at which a liquid and gaseous phases are in equilibrium?
The temperature at which a liquid and gas are in equilibrium is called the boiling point. At this temperature, the vapor pressure of the liquid equals the atmospheric pressure, allowing the liquid to change into gas and vice versa at a constant rate.
What happens to the pressure of a confined gas at a constant temperature when the volume is reduced by half?
When the volume of a confined gas is reduced by half at a constant temperature, the pressure of the gas will double according to Boyle's Law. This is because the product of pressure and volume is constant for a given amount of gas at constant temperature. When the volume decreases, the pressure increases to maintain this equilibrium.
If a liquid is sealed in a container and kept constant temperature how does its vapor pressure change over time?
If a liquid is sealed in a container at a constant temperature, its vapor pressure will initially increase until it reaches a steady state, known as equilibrium. At this point, the rate of evaporation of the liquid equals the rate of condensation of the vapor, resulting in a constant vapor pressure. Once equilibrium is achieved, the vapor pressure remains stable over time, as long as the temperature remains constant and no additional liquid is added or removed.
6 ways to disturb a chemical equilibrium?
Changing the temperature of the system. Altering the pressure of the system. Adding or removing reactants or products from the system. Introducing a catalyst that shifts the equilibrium position. Changing the volume of the system. Modifying the concentration of reactants or products in the system.
If the volume and number of moles of gas are held constant as the temperature increase what will the pressure do?
If the volume and number of moles of gas are constant, then according to the ideal gas law, pressure is directly proportional to temperature. As temperature increases, the pressure will also increase in order to maintain equilibrium.
Is it true that a change in pressure may affect the equilibrium position but has no effect on the equilibrium constant?
Yes, a change in pressure may affect the equilibrium position by shifting the reaction towards the side with more moles of gas to relieve the pressure change, but it has no effect on the equilibrium constant because the equilibrium constant is determined solely by the reaction's intrinsic properties.
What ways can equilibrium be shifted?
Equilibrium can be shifted by changing the concentration of reactants or products, adjusting the temperature, altering the pressure (for gases), or adding a catalyst. By changing these factors, the equilibrium position can be shifted towards either the products or the reactants to favor the desired reaction.
An equilibrium mixture contains n2o4 p equals 0.30 ATM and no2 p equals 1.1atm at 350 k the volume of the container is doubled at constant temperature What is the equilibrium pressures?
When the volume is doubled at constant temperature, the total pressure of the system remains constant. Therefore, the partial pressures of N2O4 and NO2 will adjust accordingly to maintain the total pressure. Use the ideal gas law to calculate the new equilibrium partial pressures.
What are the factors affecting equilibrium that causes shifting?
Factors that can cause a shift in equilibrium include changes in concentration of reactants or products, changes in temperature, changes in pressure (for gases), and the addition of a catalyst. When these factors are altered, the equilibrium position will shift in order to minimize the effect of the change and restore equilibrium.
