Concept explainers
(a)
Interpretation: Whether the starting material or product is favored at equilibrium is to be predicted on the basis of the given value of
Concept introduction: The change in Gibbs free energy and enthalpy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction, whereas the change in enthalpy describes the relative bond strength in the substance.
(b)
Interpretation: The starting material or product which is favored at equilibrium is to be identified.
Concept introduction: The change in Gibbs free energy and enthalpy is represented by
The change in Gibbs free energy describes the spontaneity of the reaction, whereas the change in enthalpy describes the relative bond strength in the substance.
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Chapter 6 Solutions
Organic Chemistry -Study Guide / Solution Manual (Custom)
- Identify the reactant that gets oxidized in the following reaction. 2Al(s) + 6HCl(aq) → 2AlCl₃(aq) + 3H₂(g) A) H in HCl B) Cl in HCl C) Al in AlCl₃ D) Al in Al(s) E) H in H₂arrow_forwardWhich is TRUE about exergonic reaction? The product is more stable than the reactant. The rate of the reaction will be very fast. The reactant is more stable than the product. The rate of the reaction will be very slow.arrow_forward2 NaHCO3(s) --> Na2CO3(s) + CO2(g) + H2O(g) (heat) above the arrow claasify the reactionarrow_forward
- According to Le Chatelier's Principle, a reaction at equilibrium will attempt to stay at equilibrium, even if stresses are applied. Which of the following is NOT a stress that chemical reactions respond to? A) A change in pressure when gaseous reagents are nonexistent. B) A change in temperature. C) An increase in the concentration of an aqueous or gaseous product. D) A decrease in the concentration of an aqueous or gaseous reactant. E) A change in pressure when gases are present in differing mole amounts on each side of the equation.arrow_forwardGiven each of the following values, is the starting material or product favored at equilibrium?A.) Keq = 5.5b.) ΔGo = 40 kJ/molarrow_forward8 a) -511.3 kJ B) +511.3 kJ NS) -697.5kJ D) +697.5kJ TO) -47.3 kJarrow_forward
- Ethanol (CH3CH2OH) is the alcohol found in beverages. It is oxidized in the body to acetaldehyde by the enzyme alcohol dehydrogenase. Methanol (CH3OH), also known as wood alcohol, is converted to formaldehyde by the same enzyme. Acetaldehyde is toxic, but formaldehyde is far more toxic to humans, which is why the ingestion of relatively small amounts of methanol can cause blindness or death. One treatment for mild methanol poisoning is the administration of ethanol. Why might a doctor choose this treatment? A. Ethanol likely irreversibly binds to alcohol dehydrogenase which prevents the formation of formaldehyde. B. The doctor has given up on the patient and administers ethanol for sedation. C. Ethanol must act as a competitive inhibitor for the alcohol dehydrogenase and therefore slows the formation of formaldehyde. D. The ethanol is likely an uncompetitive inhibitor and binds to a site other than the active site of the enzyme.arrow_forwardIn each of the following three reaction coordinate diagrams, state: (a) Whether the reaction is exothermic or endothermic. (b) Whether the reaction is the slowest, the fastest, or intermediate in rate. (c) If all three reactions have the same entropy change between the reactant and product, which reaction has the largest favorable G0.arrow_forwardHw help (19arrow_forward
- What is reduced in the reaction shown below? Mg(s) + 2HCl(aq) ⟶⟶ MgCl2(aq) + H2(g) Group of answer choices MgCl2 H2 Mg HClarrow_forwardWhich species in this reaction are being oxidized and reduced? 3Cl2 + 2Al --> 2AlCl3 Group of answer choices Al is oxidized & Cl2 is reduced Both are oxidized Al is reduced & Cl2 is oxidized Both are reducedarrow_forwardBoth boxes. box 1 answer choices: reverse direction, forward direction, or neither direction. box 2 answer choices: products, neither, or reactants.arrow_forward
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