catalysts change the rates of reactions by changing… Select one or more: a. the ∆G of...
catalysts change the rates of reactions by changing…
Select one or more:
a. the ∆G of the reaction
b. the ∆S of the reaction
c. Catalysts change all of the above.
d. the activation energy of the reaction
e. the ∆H of the reaction.
f. Catalysts change all of the above.
Homework Answers
Hence the correct option is D.
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catalysts change the rates of reactions by changing…
Select one or more:
a. the ∆G of...
The reaction rates of some spontaneous reactions are actually faster that other reactions. Which of these...
The reaction rates of some spontaneous reactions are actually faster that other reactions. Which of these statements is the best explanation for this observation? A. Kp for the reaction is less than one. B. The activation energy of the reaction is large. C. Such reactions are endothermic. D. The entropy change is negative. E. The activation energy of the reaction is small
6. [Le Châtelier's Principle] Consider the following system at equilibrium: CH&(g)+2H2O(g) CO2(g)+ 4H2(g...
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An enzyme facilitates chemical reactions by: Select one: a. Increasing the free-energy difference between reactants and...
An enzyme facilitates chemical reactions by: Select one: a. Increasing the free-energy difference between reactants and products. b. Decreasing the free-energy difference between reactants and products. c. Lowering the activation energy of the reaction. d. Raising the activation energy of the reaction. e. None of the above. Q2. Enzymes are important components of biological systems because they: Select one: a. Speed up reactions. b. Reduce the activation energy of reactions allowing them to occur. c. Catalyze specific reactions, allowing for...
What one is accurate for catalysts ? For questions (40)-(42) select the most appropriate description from...
What one is accurate for catalysts ?
For questions (40)-(42) select the most appropriate description from the list [a]-[c], below 40) Enzyme 41) Catalyst 42) Denaturation A) Changes equilibrium constant, does not change reaction velocity B) Lowers the activation energy of a reaction C) Loss of protein structure.
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form...
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form complexes with their substrates b. Enzymes lower the activation energy for chemical reactions c. Enzymes change the Key for chemical reactions d. Many enzymes change shapes slightly when substrate binds 10. To overcome an energy barrier between reactants and products, energy must be provided to get the reaction started. This energy, which is recovered as the reaction proceeds, is called: a. Activation energy b....
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B)...
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B) lowering the activation energy of a reaction. C) lowering entropy in a system. D) increasing the temperature near a reaction. E) altering the equilibrium of a reaction. Which of the following contributes to the specificity of enzymes? A) Each enzyme has a wide range of temperature and pH optimum B) Each enzyme has an active site that interacts with many C) Substrates themselves may...
Which statements are true regarding reaction rates? [Select all that apply.] 1.Group of answer choices Larger...
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Select all of the correct statements about reaction rates from the choices below. a. The lower...
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Which of the following is a true statement relating reaction rates? Select one: O a. the...
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6. [Le Châtelier's Principle] Consider the following system at equilibrium: CH&(g)+2H2O(g) CO2(g)+ 4H2(g) What change shown below will cause the equilibrium to shift to form more H2? A. increase [H2] B. decrease [H2O] C. decrease the volume of the reaction vessel D. decrease [CH4] E. decrease [CO2) b) (c) (e) x Y Reaction coordinate x+ Y 2 2. Refer to the Reaction Energy Diagram above for the following question. Which statement is TRUE regarding the diagram above? A. Letter (c)...
What one is accurate for catalysts ?
For questions (40)-(42) select the most appropriate description from the list [a]-[c], below 40) Enzyme 41) Catalyst 42) Denaturation A) Changes equilibrium constant, does not change reaction velocity B) Lowers the activation energy of a reaction C) Loss of protein structure.
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form complexes with their substrates b. Enzymes lower the activation energy for chemical reactions c. Enzymes change the Key for chemical reactions d. Many enzymes change shapes slightly when substrate binds 10. To overcome an energy barrier between reactants and products, energy must be provided to get the reaction started. This energy, which is recovered as the reaction proceeds, is called: a. Activation energy b....
Enzymes are biological catalysts and Unction by A) increasing the free energy in a system. B) lowering the activation energy of a reaction. C) lowering entropy in a system. D) increasing the temperature near a reaction. E) altering the equilibrium of a reaction. Which of the following contributes to the specificity of enzymes? A) Each enzyme has a wide range of temperature and pH optimum B) Each enzyme has an active site that interacts with many C) Substrates themselves may...
Which of the following is a true statement relating reaction rates? Select one: O a. the higher the concentration of reactants, the lower the reaction rate O b. calatyst increases reaction rate by increasing activation energy c. inhibitors decrease reaction rate d. temperature does not affect reaction rates
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