modified true or false NUMBERS 1-5 ONLY uonpeaJ aui dn paads ouC. To prevent a compound from formingD. To produce lesser amount of productsIII. Modified True or FalseDirections: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make thestatement correct.1.The area of chemistry concerned with the speed or rate at which chemical reactions occur is calledchemical kinematics.2. The substances that go away over a period of time in a chemical reaction are called products.3. In concentration products, the more collision of molecules, the rate of reaction is greater.4. During a chemical reaction, the amount of reactants increases with time while simultaneously the amountof products decreases.5. The over-all order of reaction is determined as the product of the powers of the concentration factors inthe rate equation.6. The entropy of the universe is always positive as it continues to expand.7. Entropy is the ability of randomness.8. A spontaneous process occurs naturally without the action of internal forces.9. Positive entropy change means a decrease in randomness.10. The second law of Thermodynamics states that for any spontaneous process, there is a net increase in thetotal entropy of the system and its surroundings.\11. The second law of thermodynamics explains the relationship between entalpy change and spontaneity ofa process.12. Free energy is a portion of the total energy of a system that is not available to do useful work.13. Gibbs free energy also determines the non-spontaneity of a reaction14. According to Gibbs free energy, AH must be positive, while AS is negative.15.. A reversible chemical reaction reaches a state of equilibrium.III. Short response TestDirections: Answer the following questions briefly and concisely.1. Why is understanding of the concept of pH important?2. Why is studying the nature of chemical reactions significant to the society?

Answered: Image /qna-images/answer/e4132547-a9b8-4342-9db4-c7c4de61866d.jpg

III. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1.The area of chemistry concerned with the speed or rate at which chemical reactions occur is called chemical kinematics. 2. The substances that go away over a period of time in a chemical reaction are called products. 3. In concentration products, the more collision of molecules, the rate of reaction is greater. 4. During a chemical reaction, the amount of reactants increases with time while simultaneously the amount of products decreases. 5. The over-all order of reaction is determined as the product of the powers of the concentration factors in the rate equation. 6 The entronu oft

III. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1.The area of chemistry concerned with the speed or rate at which chemical reactions occur is called chemical kinematics. 2. The substances that go away over a period of time in a chemical reaction are called products. 3. In concentration products, the more collision of molecules, the rate of reaction is greater. 4. During a chemical reaction, the amount of reactants increases with time while simultaneously the amount of products decreases. 5. The over-all order of reaction is determined as the product of the powers of the concentration factors in the rate equation. 6 The entronu oft

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section11.1: Reaction Rate

Problem 11.2CE: Instantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of...

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Instantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of the curve in Figure 11.3 at various concentrations. They are (1) At 4.0 105 mol/L, rate = 12.3 107 mol L1 s1 (2) At 3.0 105 mol/L, rate = 9.25 107 mol L1 s1 (3) At 2.0 105 mol/L, rate = 6.16 107 mol L1 s1 (4) At 1.5 105 mol/L, rate = 4.60 107 mol L1 s1 (5) At 1.0 105 mol/L, rate = 3.09 107 mol L1 s1 (a) What is the relationship between the rates in (1) and (3)? Between (2) and (4)? Between (3) and (5)? (b) What is the relationship between the concentrations in each of these cases? (c) Is the rate of the reaction proportional to the concentration of Cv+? Explain your answer.
Why is it divided in half? I always thought we just plug it into the found rate. That's what I did with the others, and those were right. What's different?
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In any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99
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Using the data in the table, calculate the rate constant of this reaction. A+B⟶C+D Trial [?] (?) [?] (?)[) Rate (M/s) 1 0.370 0.390 0.0234 2 0.370 0.936 0.135 3 0.592 0.390 0.0374 ?= ? units= ?
For A⟶products, time and concentration data were collected and plotted as shown. [?] (?) t (s) 0.6000.600 00.000.0 0.4840.484 30.030.0 0.4050.405 60.060.0 0.3490.349 90.090.0 order = k = units =
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