Chem 1412 Prelab LeChatelier\'s Principle Name Section Date 1. A reaction in equ
ID: 543236 • Letter: C
Question
Chem 1412 Prelab LeChatelier's Principle Name Section Date 1. A reaction in equilibrium is termed a "dynamic equilibrium because the forward and reverse reactions continue to occur as the molecules collide with each other. What the definition of equilibrium with respect to these reaction rates? The reachon is equal fo Ine of the revesc and products ave consta ntahon of icatant 2. According to LeChatelier, when CO is decreased, what causes the equilibrium to be restored? 2CO + O2 2CO2 3. How will the direction of the shift be detected in this experiment? 4. What two ways are concentrations decreased in chemical equilibria? 5. How could you decrease the concentration of Cu2* in the aqueous equilibrium below? blue colorless yellow 6. Indicators are used as color "sensors" for the concentration of H ions in a solution. Phenolphthalein changes from colorless in acid (high H') to pink (lower H') in base. When a solution containing carbonate ions is added to this equilibrium, the color becomes more pink. Based on the color, have the H ions increased or decreased? HCO3" + H2O= H+ + CO32- What direction does LeChatelier predict? Which direction is the shift?Explanation / Answer
2- if CO concentration decreases the reaction tend to become backward direction to maintain the equilibrium condition.
3- we can predict the direction of shift by determining the concentration of reactant and product. If concentration of product is less than the the concentration required for equilibrium, then reaction moves in forward direction.
4- two methods can be changethe chemical equilibrium are. the changing of volume and addition or removal of reactant or product.
5 - concentration of copper ion can be decreases by the shifting of reaction towards forward direction. And it can be done by removal of product from chamber.
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