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
EBK ORGANIC CHEMISTRY
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- Calculate the energy change of the following reaction: 2NO + O2→ 2NO2 ΔH: NO = 90.0 kJ/mol NO2= 34.0 kJ/mol O2= 0.0 kJ/mol a -180 kJ b -112 kJ c 35.0 kJ d -248 kJarrow_forwardCalculate A,H for the following reaction: 5C(s) + 6H2(9) → C5H12(1) Use the following reactions and given ArH's. C5H12 (1) + 8 O2(g) → 5CO2(g) + 6H2O(g), A;H = -3505.8 kJ mol C(s) + 02(g) → CO2(g), ArH = -393.5 kJ mol1 2H2(g) + O2(9) → 2H2O(g) , A¡H = -483.5 kJ molarrow_forwardDiscuss the conditions needed to have a reaction with gaseous reagents and gaseous products so that The value of Kp increases with increasing temperature The value of ΔG° increases with increasing temperature The value of k increases with increasing temperature The conversion of one of the reagents increases with increasing pressurearrow_forward
- 9C (s) + 12H2 (g) + 3/2 O2 (g) → 3C3H7 OH (1) The enthalpy change is -954 kJ and entropy increases. Using Le Chatelier's Principle, check all of the following disturbances that would allow you to obtain more propanol. increase temperature decrease temperature increase pressure decrease pressure increase hydrogen concentration remove product add carbon increase oxygen concentrationarrow_forwardWhich value (if any) corresponds to a faster reaction: (a) Ea = 40 kJ/mol or Ea = 4 kJ/mol; (b) a reaction temperature of 0 °C or a reaction temperature of 25 °C; (c) Keq = 10 or Keq = 100; (d) ΔH° = −10 kJ/mol or ΔH° = 10 kJ/mol?arrow_forward1A)Given the following value, tell whether the starting material or product is favored at equilibrium. Keq = 6 A. Starting material favored B. Product favored 2B) Given the following value, tell whether the starting material or product is favored at equilibrium. DG = 5 kcal/mol A. Starting material favored B. Product favoredarrow_forward
- Using your knowledge of pK, values without a table, predict whether the reactants or products are favored? 4. Н reactants or products favored? -н reactants or products favored? reactants or products favored? Он ОН Н NH2 reactants or products favored? NH3arrow_forwardно LOH он HCI (aq.) но- G+H +I но но. heat OH ÓMe но но H', CH3OH но- но. K (major product) онarrow_forwardWhich value (if any) corresponds to a faster reaction: (a) Ea = 40 kJ/mol or Ea = 4 kJ/mol; (b) a reaction temperature of 0 °C or a reaction temperature of 25 °C; (c) Keq = 10 or Keq = 100; (d) ΔHo = −10 kJ/mol or ΔHo = 10 kJ/mol?arrow_forward
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