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Anonymous users2024-02-07Conversion rate: Reversible reaction.
The percentage of the ratio of the transformation concentration of a reactant (equal to the difference between the starting and equilibrium concentrations of a reactant) to the starting concentration of a reactant when equilibrium is reached. It can be used to indicate the degree to which a reversible reaction is carried out.
Conversion Rate Formula: (Initial Concentration - Equilibrium Concentration) Initial Concentration.
The equilibrium moves in the positive direction, the conversion rate of reactants increases, and the conversion rate of products decreases. The opposite is also true.
If the concentration of one reactant is increased, its conversion rate decreases, and the conversion rate of another reactant increases. The opposite is also true.
Yield: In chemical reactions, especially reversible reactions, yield is the ratio of the actual yield of a product to the theoretical yield.
Abbreviation for beneficiation rate. In the beneficiation process, the percentage of the mass of a product in the quality of the selected raw ore is the yield of this product.
For example, concentrate yield, that is, the percentage of the quality of the concentrate to the quality of the raw ore being entered: the quality of the concentrate.
Ore quality 100
Yield is an important technical and economic indicator in the process of mineral processing.
The ratio of the weight of the beneficiation to the weight of the raw ore is usually a percentage.
to represent. Concentrate yield = concentrate quality Feed quality 100%.
Tailings rate = (1 concentrate rate) 100%.
Calculation formula: yield = raw ore incoming grade * beneficiation ** rate concentrate grade * 100%.
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Anonymous users2024-02-06The yield calculated according to the equation is called the theoretical yield; The ratio of the actual yield to the theoretical yield is called the yield; The percentage of raw materials participating in the reaction is called the conversion rate.
For example, if the reversible reaction is 2n2 + 3h2 = 2nh3, according to the equation, 6 grams of hydrogen can produce 34 grams of ammonia, then 34 grams is.
theoretical yield; However, the actual reversible reaction could not be carried out to the end, and only 17 grams of ammonia were produced, 17 34 = 50%, which is the yield; If only 2 grams of 6 grams of hydrogen react, 2 6 = is the conversion rate.
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Anonymous users2024-02-05Chemical conversion is the mass of a substance participating in a reaction and the total mass of a substance.
Definition: When a reversible chemical reaction reaches a state of chemical equilibrium, the amount of a certain raw material converted into the target product is the percentage of the starting amount of that raw material.
Calculation method: such as AA+BB=CC+DD (A)=(Initial concentration of A, equilibrium concentration of A) Initial concentration of A: 100%.
Influencing factors:
The conversion rate is determined by the balance shift. When the factor can shift the equilibrium in the direction of the positive reaction, i.e., the conversion rate increases, and vice versa.
Factors that can cause the equilibrium to shift are usually temperature, pressure, and concentration. If the forward reaction is an endothermic reaction, the temperature is increased, the conversion rate increases, and the temperature is reduced, and the conversion rate decreases; If the forward reaction is an exothermic reaction, the conversion rate decreases when the temperature is increased, and the conversion rate increases when the temperature is reduced.
The above content reference: Encyclopedia - Conversion Rate.
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Anonymous users2024-02-041. Yield refers to the percentage of reactants consumed in the formation of the target product to the total reactants; Conversion rate.
Refers to the percentage of reactants that react.
2. The conversion rate refers to the percentage of the reactants in the total reactants of all the reactions, no matter what substances are generated, while the pure yield refers to the proportion of the reactants consumed in the formation of the target product to the total reactants.
3. Generally speaking, the yield should be less than the conversion rate.
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Anonymous users2024-02-031. The yield refers to the percentage of the reactants consumed in the production of the target product to the total reactants; The conversion rate is the percentage of reactant-type pure reactions.
2. The conversion rate refers to the percentage of reactants in all reactions to the total reactants, regardless of what substances are generated, and the yield refers to the proportion of the reactants consumed in the formation of the target product to the total reactants.
3. Generally speaking, the yield should be less than the conversion rate.
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Anonymous users2024-02-02What was said upstairs is not right! The theoretical yield refers to the mass of the product calculated by the equation of the irreversible reaction, the yield of a product refers to the percentage of the mass of the reactant required to produce a useful product (i.e., the product that needs to be obtained) and the total mass of the reactant, and the conversion rate of a reactant refers to the percentage of the mass of the reactant participating in the reaction to the initial mass of the reactant!
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Anonymous users2024-02-01Yield refers to the quality of the desired reaction product. If this value is calculated from a chemical equation, it is called "theoretical yield", and if it is weighed after experiments, it is called "actual yield". Often, the actual yield is less than the theoretical yield.
Yield is the ratio of actual production to theoretical production.
Conversion rate refers to the ratio of the mass of the product to the mass of the reactant.
I suggest you study science, I'm a liberal arts student, I regret studying literature, whether it's employment or further education, science is not popular, high school mathematics in general uses not much junior high school knowledge, sometimes just use individual formulas, as long as you work hard in high school mathematics will catch up. Since physical chemistry is not bad, physical chemistry is more questions. And liberal arts, I once memorized all 4 books on politics and couldn't do it, liberal arts all rely on comprehension ability, no matter how well I memorize it, I can't learn the essay well, and the high school graduation exam is very helpful to your exam, and the future of learning science will be less, but the graduation exam is a full exam of arts and sciences, and it's not good to learn science at all, and the liberal arts just read books.
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