the catalyst, and the reaction mixture: remain in different phases, and thereby they don’t form a...
Homework Answers
********Catalysts provide a new reaction pathway in which a lower A.E. is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.
***********[some important fact-A catalyst is a substance that changes the rate of a chemical reaction without being consumed in the reaction. ... It is regenerated by the chemical reaction so it can be used again and again. Catalysts work by lowering the activation energy a reaction needs in order to proceed. It lowers the hill.] ************* thank you very much
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the catalyst, and the reaction mixture: remain in different phases,
and thereby they don’t form a...
How does a positive catalyst generally affect a chemical reaction? A catalyst increases the temperature of...
How does a positive catalyst generally affect a chemical reaction? A catalyst increases the temperature of the reaction which speeds the reaction rate. A catalyst reduces the frequency factor which speeds the reaction rate. A catalyst reduces the amount of solvent required which slows the reaction rate. A catalyst reduces activation energy which speeds the reaction rate.
A catalyst increases the rate of a reaction by providing a different reaction pathway that lowers...
A catalyst increases the rate of a reaction by providing a different reaction pathway that lowers only the activation energy. raises only the energy of the products. lowers only the energy of the reactants and products. All of these are affected by the presence of a catalyst.
Shown below is the formation reaction of ammonia. How does the catalyst used in the industrial...
Shown below is the formation reaction of ammonia. How does the catalyst used in the industrial production of ammonia affect the activation energies of the forward and reverse reactions? N2+3H2⇌2NH3 A. activation energy decreased for the forward reaction, increased for the reverse reaction B. activation energy increased for the forward reaction, decreased for the reverse reaction C. activation energy decreased both the forward and reverse reactions D. activation energy increased for both the forward and reverse reactions
1a. How does a catalyst change the equilibrium of a reaction? r A catalyst lowers the...
1a. How does a catalyst change the equilibrium of a
reaction?
r
A catalyst lowers the activation energy and so changes the rate
constants and therefore changes the equilibrium constant.
A catalyst lowers the activation energy and so changes the rate
constants and therefore changes the equilibrium constant.
A catalyst helps to form more products so it always increases
the equilibrium constant.
A catalyst adds a reactant to the equilibrium expression and so
changes the equilibrium constant.
A catalyst doesn't...
A catalyst: a) actually participates in the reaction b) changes the equilibrium concentration of the products...
A catalyst: a) actually participates in the reaction b) changes the equilibrium concentration of the products c) does not affect a reaction energy path d) always decrease the rate for a reaction e) always increases the activation energy for a reaction
The best description of how a catalyst makes a reaction proceed at a faster rate is...
The best description of how a catalyst makes a reaction proceed at a faster rate is a. A catalyst increases the kinetic energy of the reactant particles. b. A catalyst provides an alternate path for the reaction and effectively lowers the activation energy. c. A catalyst lowers the average energy of the product molecules. d. A catalyst changes the position of equilibrium by shifting the reaction towards the products. e. A catalyst raises height of the energy barrier required for...
please provide proper explanation For part 3 - the effect of a catalyst : Time it took for the mixture to tu...
please provide proper explanation
For
part 3 - the effect of a catalyst : Time it took for the mixture to
turn blue when a catalyst wass added to reactants
Describe the effect of a catalyst below. Use the rate you
observed to back your description
We were unable to transcribe this imagePart 2: Determination of the Activation Energy: 1) In this section you will measure the rate of reaction at four different temperatures. To do this you'll use the...
For a catalyzed reaction: a) Does the catalyst change the energy of the reactants? Of the...
For a catalyzed reaction: a) Does the catalyst change the energy of the reactants? Of the products? If so, how? b) Does the catalyst change the energy of the transition state? If so, how? c) On the graph below, draw the following: • An exothermic reaction indicate by drawing a solid line) • The same exothermic reaction, but with the addition of a catalyst indicate by drawing this as a dashed line) Energy Reaction Progress
For the following reaction: H2 (g) + Br2 (g)→ 2HBr (g) platinum is used as catalyst. How does the platinum lower the act...
For the following reaction: H2 (g) + Br2 (g)→ 2HBr (g) platinum is used as catalyst. How does the platinum lower the activation energy and therefore promote H2 and Br2 to react with eachother?
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...
1a. How does a catalyst change the equilibrium of a
reaction?
r
A catalyst lowers the activation energy and so changes the rate
constants and therefore changes the equilibrium constant.
A catalyst lowers the activation energy and so changes the rate
constants and therefore changes the equilibrium constant.
A catalyst helps to form more products so it always increases
the equilibrium constant.
A catalyst adds a reactant to the equilibrium expression and so
changes the equilibrium constant.
A catalyst doesn't...
please provide proper explanation
For
part 3 - the effect of a catalyst : Time it took for the mixture to
turn blue when a catalyst wass added to reactants
Describe the effect of a catalyst below. Use the rate you
observed to back your description
We were unable to transcribe this imagePart 2: Determination of the Activation Energy: 1) In this section you will measure the rate of reaction at four different temperatures. To do this you'll use the...
For a catalyzed reaction: a) Does the catalyst change the energy of the reactants? Of the products? If so, how? b) Does the catalyst change the energy of the transition state? If so, how? c) On the graph below, draw the following: • An exothermic reaction indicate by drawing a solid line) • The same exothermic reaction, but with the addition of a catalyst indicate by drawing this as a dashed line) Energy Reaction Progress
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