Methanol Purification Version – Daily Question 20200420
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What is chemical equilibrium? How do concentration, pressure, and temperature affect chemical equilibrium? Answer: For a reversible reaction, the state in which the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction) is called chemical equilibrium. Concentration: An increase in the concentration of the reactants shifts the chemical equilibrium to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions.
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions.
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions.
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions.
For a reversible reaction, the system is in a state of chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction (that is, the number of molecules consumed in the forward reaction per unit time is equal to the number of molecules produced in the reverse reaction). Concentration: As the concentration of the reactants increases, the chemical equilibrium shifts to the right ； As the concentration of the product increases, the chemical equilibrium shifts to the left. Pressure: Increasing pressure shifts the chemical equilibrium in the direction of reduced volume ； By reducing the pressure, the chemical equilibrium shifts in the direction of increased volume. Temperature: Increasing the temperature shifts the chemical equilibrium in the direction of endothermic reactions ； Lowering the temperature shifts the chemical equilibrium in the direction of exothermic reactions