| Term | Definition |
|---|
| What happens in reversible actions | 2 opposite reactions occur simultaneously |
| True or false, chemical equilibrium is a state in which the forward and reverse reactions take place at different rates | nope! |
| The eq position of a reaction is given by the relative ___?___of the systems components at the equilibrium | concentrations |
| look on sheet | look on sheet |
| use figure 18.10, A.which graph, left or right shows an initial concentration of 100% SO(3)and no SO(2) B. Compare the initial concentrations of the substances shown in the other graph. C. What is the favored substance at equ? how can you tell | A.right B.2x as much SO(2) as O(2) and no SO(30) |
| What is Le Chateliers pricipal? | if a stress is applied to a system in dynamic EQ the system will change to relieve the stress. |
| Stresses that upset the eq of a chemical system include changes in? | pressure and temperature |
| when you add a product to a (reversible) chemical reaction the reaction is always pushed in the direction of ___?___...When you remove a product the reaction is pulled in the direction of ____?____ | Reactants...Products |
| True or false..increasing the temperature of a chemical reaction causes the EQ position of a reaction to shift in the direction that absorbs heat. | Yup! |
| how does increasing pressure affect the chemical system? | results in a shift of the EQ position that favors the formation of the smaller volume of gas |
| decreasing the pressure on the system shown on fig 18.13 results in a shift of EQ to favor? | the reactants |
| The EQ constant(Keq)is the ratio of _?_concentrations to __?__ concentrations at EQ, with each concentration raised to a power equal to the number of ___?___of that substance in the balanced chemical equation. | product, reactant, moles |
| What are the exponents in the EQ constant expression? | coefficient of the balanced chemical equation |
| what do the square brackets indicate in the EQ constant expression | concentration of substances in moles per litre(Mol/L) |
| T or F,, The value of (Keq) for a reaction depends on the temperature.. | yup! |
| A value of (Keq) GREATER than 1 means that __?__ are favored over __?__ . A value of (Keq) LESS than 1 means that __?__ are favored over __?__ . | products-reactants-reactants-products. |
Combine with other sets
Share on Facebook
Share on MySpace