7. An increase in the temperature of the reactants causes an increase in the rate of...
7. An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases,
a. the fraction of collisions with total kinetic energy greater than Ea increases.
b. the concentration of reactants increases.
c. the activation energy remains the same.
d. the collision frequency decrease
Homework Answers
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7. An increase in the temperature of the reactants causes an
increase in the rate of...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Exp...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Explain. Concentration of reactants: mcreases more collisions within the reactants. collisions Temperature: Increase in temperature causes increase in more and more energy in collisions. (increases rate? Catalyst: Lowens energy of activation of reactants cate? (increases rutes
(6.4) The rate of a chemical reaction increases with an increase in the concentration of one...
(6.4) The rate of a chemical reaction increases with an increase in the concentration of one or more reactants. This is best explained by which statement? Select one: a. The higher concentration of reactants increases the activation energy of the reaction. Ob. The higher concentration of reactants increases the potential energy of the molecules. c. The higher concentration of reactants increases the frequency of collisions between molecules. d. The higher concentration of reactants increases the temperature of the molecules. Check...
Thank you everymuch I will rate quickly when answered! Chemical reactions occur when molecules or atoms...
Thank you everymuch I will rate quickly when answered!
Chemical reactions occur when molecules or atoms collide, the bonds between atoms are broken, and new bonds are formed. Breaking the bonds of the reactants requires energy; bond formation releases energy Which of the following statements regarding energy changes during a reaction are true? The energy of a collision between atoms or molecules must be greater than or equal to the activation energy (Ea) for bonds to be broken. When the...
Effect of a Catalyst on Reaction Rate: with a lower Ea than for the uncatalyzed reaction....
Effect of a Catalyst on Reaction Rate: with a lower Ea than for the uncatalyzed reaction. This is shown as the blue path with Ea in the diagram below t a given temperature, a catalyst increases the rate of a reaction by providing a pathway E (RJ) products Reaction Coordinale Since the potential energy barrier is lower in the presence of a catalyst, a greater fraction of the molecules will have sufficient energy to react. Because the reactants and products...
12. When the moles of a gas increase at constant volume and temperature: the average kinetic...
12. When the moles of a gas increase at constant volume and temperature: the average kinetic energy increases the mean square velocity stays the same the frequency of collisions increases the force per collision increases Incorrect. Submit
There are several factors that affect the rate of a reaction. These factors include temperature, activation...
There are several factors that affect the rate of a reaction. These factors include temperature, activation energy, steric factors (orientation), and also collision frequency, which changes with concentration and phase. All the factors that affect reaction rate can be summarized in an equation called the Arrhenius equation: k=Ae−Ea/RT, where k is the rate constant, A is the frequency factor, Ea is the activation energy, R=8.314 J mol−1 K−1 is the gas constant, and T is the absolute temperature. A certain...
There are several factors that affect the rate of a reaction. These factors include temperature, activation...
There are several factors that affect the rate of a reaction. These factors include temperature, activation energy, steric factors (orientation), and also collision frequency, which changes with concentration and phase. All the factors that affect reaction rate can be summarized in an equation called the Arrhenius equation: k=Ae−Ea/RT, where k is the rate constant, A is the frequency factor, Ea is the activation energy, R=8.314 J mol−1 K−1 is the gas constant, and T is the absolute temperature. A certain...
Which of the following is not a factor involved in determining the rate of a chemical...
Which of the following is not a factor involved in determining the rate of a chemical reaction? the fraction of collisions which occur with a favorable orientation the total number of collisions per unit time the fraction of collisions with energy greater than the activation energy the molar mass of the reactants
11. When the volume of a gas increases at constant temperature: the average kinetic energy stays...
11. When the volume of a gas increases at constant temperature: the average kinetic energy stays the sameB - the mean square velocity stays the same the frequency of collisions decreases the force per collision decreases Incorrect. Submit 12. When the moles of a gas increase at constant volume and tempera the average kinetic energy increases the mean square velocity stays the same - the frequency of collisions increases the force per collision increases Incorrect. Submit 13. When hydrogen gas...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal...
Explain why each change in conditions would affect the reaction rate of reaction when sodium metal reacts with chlorine gas to form NaCl? As a catalyst is added to the mixture the reaction rate will increase because As temperature decreases the reaction rate will decrease because As volume decreases the reaction rate will increase because As concentration increases the reaction rate will increase because As the surface area of a molecule is decreased the reaction rate will decrease because As...
29 (6 pts) How do concentration of reactants, temperature and catalysts affect the rate of a chemical reaction? Explain. Concentration of reactants: mcreases more collisions within the reactants. collisions Temperature: Increase in temperature causes increase in more and more energy in collisions. (increases rate? Catalyst: Lowens energy of activation of reactants cate? (increases rutes
(6.4) The rate of a chemical reaction increases with an increase in the concentration of one or more reactants. This is best explained by which statement? Select one: a. The higher concentration of reactants increases the activation energy of the reaction. Ob. The higher concentration of reactants increases the potential energy of the molecules. c. The higher concentration of reactants increases the frequency of collisions between molecules. d. The higher concentration of reactants increases the temperature of the molecules. Check...
Thank you everymuch I will rate quickly when answered!
Chemical reactions occur when molecules or atoms collide, the bonds between atoms are broken, and new bonds are formed. Breaking the bonds of the reactants requires energy; bond formation releases energy Which of the following statements regarding energy changes during a reaction are true? The energy of a collision between atoms or molecules must be greater than or equal to the activation energy (Ea) for bonds to be broken. When the...
Effect of a Catalyst on Reaction Rate: with a lower Ea than for the uncatalyzed reaction. This is shown as the blue path with Ea in the diagram below t a given temperature, a catalyst increases the rate of a reaction by providing a pathway E (RJ) products Reaction Coordinale Since the potential energy barrier is lower in the presence of a catalyst, a greater fraction of the molecules will have sufficient energy to react. Because the reactants and products...
12. When the moles of a gas increase at constant volume and temperature: the average kinetic energy increases the mean square velocity stays the same the frequency of collisions increases the force per collision increases Incorrect. Submit
Which of the following is not a factor involved in determining the rate of a chemical reaction? the fraction of collisions which occur with a favorable orientation the total number of collisions per unit time the fraction of collisions with energy greater than the activation energy the molar mass of the reactants
11. When the volume of a gas increases at constant temperature: the average kinetic energy stays the sameB - the mean square velocity stays the same the frequency of collisions decreases the force per collision decreases Incorrect. Submit 12. When the moles of a gas increase at constant volume and tempera the average kinetic energy increases the mean square velocity stays the same - the frequency of collisions increases the force per collision increases Incorrect. Submit 13. When hydrogen gas...
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