17. When is a system at equilibrium said to be dynamic? * O just prior to equilibrium being established O at the start of the process when only reactants are present in the container when the system is changing at the molecular level with no change at the macroscopic level when the system is changing at the macroscopic level with no change at the molecular level O when the system reaches constant pressure

17. When is a system at equilibrium said to be dynamic? * O just prior to equilibrium being established O at the start of the process when only reactants are present in the container when the system is changing at the molecular level with no change at the macroscopic level when the system is changing at the macroscopic level with no change at the molecular level O when the system reaches constant pressure

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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i See Periodic Table See Hin Increasing the concentration of a reactant shifts the position of chemical equilibrium towards formation of more products. What effect does adding a reactant have on the rates of the forward and reverse reactions? Choose one: O There is no effect on the forward and reverse reactions. For an equilibrium reaction, the forward and reverse rates are always equal. O Both the forward and reverse reactions speed up by the same amount. O The forward reaction speeds up immediately. As more product is made, the reverse reaction starts to speed up as the forward reaction starts to slow down until they are equal. O The forward reaction slows down initially. As the reaction proceeds, the reverse reaction slows down to meet the new forward reaction. O The forward reaction speeds up. Eventually, production of the product speeds up the reverse reaction rate to match the new forward rate. O It is impossible to say without more specific information.
Why can an equilibrium be represented mathematically? Please explain!
Which change does not shift equilibrium to the right (the forward direction)? O Decreasing product concentration Adding a catalyst Increasing reactant concentration Increasing product concentration O
K values are often written and scientific notation. If a K value has a positive power of 10 does equilibrium favor the products or reactants.
Record your two digit answer. Use the following information to answer the next 4 questions. An equilibrium system was established in a 1.00 L flask at a certain temperature as represented by the following equation ICI(g) + Cl₂(g) ICI,(g) + energy brown yellow-green bright yellow At equilibrium the flask contained 0.0571 mol of ICI(g), 1.07 mol of Cl₂(g), 1.87 mol of ICl3(g) The value of the equilibrium constant for this system is 30.6 Record your 3-digit answer Under these conditions, the equilibrium system in Question 20 favours the forward the reverse neither reaction. ?
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What are the relative amounts of reactants and products at equilibrium?
* Question Completion Status: QUESTION 1 Consider the following reversible reaction at equilibrium: 3 H2(g) + N2(g) → 2NH3(g) + heat Which of the following changes will shift the equilibrium towards the reactants (left side)? O Decreasing the amount of NH3. O Adding a catalyst to the system. O Decreasing the volume of the system. O Decreasing the temperature. O Decreasing the amount of H2. QUESTION 2 Click Save and Submit to save and submit. Click Save All Answers to save all answers. arch DELL prt sc FIO DII F9 F8 F3 F4 FS
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Nitrogen and oxygen react at high temperatures. What will happen to the concentrations of at equilibrium if a catalyst is added? Catalyst will be contaminated Double Nothing Depends on the catalyst
Most medications have an expiration date. Describe with respect to equilibrium, what occurring as the medication ages. Is there any of the medication left after the expiration date?