22. The rate at which a reaction occurs depends on the collisions between the molecules in the reactants. Which BEST describes the result of a temperature increase on the collisions of the molecules? O The surface area of the molecules increases, which makes the collisions more effective. O The molecules are compressed, which decreases the number of collisions. O The molecules move faster, which increases the energy released by the collisions. O The number of molecules increases, which increases the frequency of collisions.

22. The rate at which a reaction occurs depends on the collisions between the molecules in the reactants. Which BEST describes the result of a temperature increase on the collisions of the molecules? O The surface area of the molecules increases, which makes the collisions more effective. O The molecules are compressed, which decreases the number of collisions. O The molecules move faster, which increases the energy released by the collisions. O The number of molecules increases, which increases the frequency of collisions.

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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1.)It deals with the rates of reactions and how it is influenced by certain conditions. Thermodynamic Thermochemistry Chemical Kinetics Chemical Equilibrium 2.)True or False: If the concentration of reactants is increased, the number of colliding particles will decrease thereby, decreasing the rate of reaction. True False
When a system is a dynamic equilibrium, A no reactions are occurring B a reaction is occurring in only one direction C the rates of the forward and reverse reactions are equal D all of the reactants have been converted to products
M38.
Why does a soft drink become “fl at” faster when it is left open at room temperature compared to when it is left open in the refrigerator?
All changes savec 31. Why does increasing the temperature of a chemical reaction speed up the reaction? O Increasing the temperature of the substance does not speed up the reaction. O Increasing the temperature will increase how fast the particles will move; the faster the particles move, the less they bump Into each other, speeding up the reaction. O Increasing the temperature of the substance will slow down the movement of the particles, therefore allowing the reaction to speed up. O When the temperature of the substance is increased, the particles within it will move faster. The particles will move faster and will bump into each other more, increasing speed of the emical reaction. 32. The illustration below graphs energy during the formation of a covalent bond. Where can you identify an endothermic reaction? 2 H,+ 0, 2 H,0 PREVIOUS 1-50 of 50 NEXT REVIEW DELL
6
For the following reaction at a certain temperature, 1.57 mol H2 and 1.56 mol l2 are placed into a 2.05 L flask. At equilibrium, 2.70 mol of HI has been formed. Calculate Kc. H2(g) + 12(g) = 2 HI(g)
Rate of chemical reactions
Which statement best describes general equilibrium? O Equilibrium is reached when the reaction stops. O There is only one set of equilibrium concentrations that equals the Kc value. At equilibrium, the rate of the forward reaction is the same as the rate of the reverse reaction. At equilibrium, the total concentration of products equals the total concentration of reactants.
Consider the reaction: 2 CO2 (g) = 2 CO (g) + 02 (g). What will happen if the pressure is increased? We cannot predict O No effect O Shift to the left O Shift to the right
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