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.
Homework Answers
Add Answer to:
A catalyst increases the rate of a reaction by providing a
different reaction pathway that
lowers...
1. A catalyst affects the rate of a chemical reaction by a. providing an alternate reaction...
1. A catalyst affects the rate of a chemical reaction by a. providing an alternate reaction pathway with a lower activation energy. b. decreasing the energy difference between the reactants and products. c. increasing the number of collisions between the reactants. d. increasing the average kinetic energy of the reactants.
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...
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...
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...
Can someone help me? A catalyst can not increase the rate of a reaction W. by...
Can
someone help me?
A catalyst can not increase the rate of a reaction W. by lowering the activation energy of the reverse reaction X. by lowering the overall activation energy (Eg) of the reaction Y. by changing the value of the frequency factor (A) Z. by providing an alternative pathway with a lower activation energy W.X only All of these are ways that a catalyst might act to increase the rate of the reaction 0 W,X,Y Zonly OX,Z
Question 12 How does an enzyme work to catalyze a reaction? -It lowers the activation energy...
Question 12 How does an enzyme work to catalyze a reaction? -It lowers the activation energy of a reaction. -It raises the temperature of a reaction. -It supplies the energy to speed up a reaction. -It increases the concentration of the reactants in a reaction. -It allows the reaction to proceed through different intermediates.
Which statement below is true only for a homogeneous catalysts? a. A homogeneous catalyst increase the...
Which statement below is true only for a homogeneous catalysts? a. A homogeneous catalyst increase the rate of reaction by providing an alternative pathway with a lower activation energy. b. A homogeneous catalyst is a solid substance to which liquid or gaseous reactants will adhere to the surface of the catalyst. c. A homogeneous catalyst is when the catalyst is in the same physical state as the reactant. d. A homogeneous catalyst will eventually be consumed in a chemical reaction.
15) Suppose that a catalyst lowers the activation energy of a reaction from 115kJ/mol to 95kJ/mol...
15) Suppose that a catalyst lowers the activation energy of a reaction from 115kJ/mol to 95kJ/mol. By what factor would the rate increase at 25°C? a) 1.2 b) 336 c) 3000 d) 11000 e) 6 x 1041
15) Suppose that a catalyst lowers the activation energy of a reaction from 115kJ/mol to 95kJ/mol. By what factor would the rate increase at 25°C? a) 1.2 b) 336 c) 3000 d) 11000 e) 6 x 1041
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant...
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
Which of the following statements is true? A catalyst increases the activation energy of the reaction....
Which of the following statements is true? A catalyst increases the activation energy of the reaction. A catalyst increases the enthalpy change for the reaction. A catalyst increases the rate of both the forward reaction and the reverse reaction. A catalyst increases the rate of the forward reaction and decrease the rate of the reverse reaction.
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...
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...
Can
someone help me?
A catalyst can not increase the rate of a reaction W. by lowering the activation energy of the reverse reaction X. by lowering the overall activation energy (Eg) of the reaction Y. by changing the value of the frequency factor (A) Z. by providing an alternative pathway with a lower activation energy W.X only All of these are ways that a catalyst might act to increase the rate of the reaction 0 W,X,Y Zonly OX,Z
15) Suppose that a catalyst lowers the activation energy of a reaction from 115kJ/mol to 95kJ/mol. By what factor would the rate increase at 25°C? a) 1.2 b) 336 c) 3000 d) 11000 e) 6 x 1041
15) Suppose that a catalyst lowers the activation energy of a reaction from 115kJ/mol to 95kJ/mol. By what factor would the rate increase at 25°C? a) 1.2 b) 336 c) 3000 d) 11000 e) 6 x 1041
12.) Which of the following factors influence the rate of a reaction? A) Temperature B) Reactant concentration C) A catalyst D) Temperature, reactant concentration, and a catalyst 13.) A fast reaction rate for a chemical reaction is dependent on: A) having a large activation energy B) having a small activation energy C) being exothermic D) being endothermic 14.)) A catalyst is A) a substance that decreases the energy of the products. B) a product in a chemical reaction. c) a...
Most questions answered within 3 hours.
-
a) Draw two water molecules.
b) Clearly name and label the type of bond that exists...
asked 15 minutes ago -
C - Language
Write a loop that sets each array element to the sum of itself...
asked 1 hour ago -
(63
#14)
which of the following statments best describes how chamging
the concentration of the substances...
asked 4 hours ago -
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 5 hours ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 8 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 8 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 8 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 9 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 10 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 10 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 10 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 10 hours ago