Homework Answers
Let us have a look at following general reaction profile diagram
According to Lechatlier's principle
1. decreasing temperature for an exothermic reaction favor equilibrium shifts towards products side.
2. Increasing temperature disfavor product side and Gibbs free energy becomes positive.
3. At low temperatures reaction becomes spontaneous
4. If ∆S is positive, the system becomes more disordered due to negative Gibbs free energy which comes from positive entropy. Entropy increases where a reaction proceeds due to increase in Keq value.
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The Temperature Dependence of Chemical Equilibrium For an equilibrium reaction: A+B Kcto the following graph was...
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C + D
Given the above relationship, use the graph to identify which of
the following statements are "true" or "false" in this specific
case.
All statements refer to the forward reaction (proceeding left to
right, as given) corresponding to the equilibrium constant K.
1)The reaction is spontaneous at the highest temperatures but
not at lower temperatures.
2)deltaS° for the reaction is negative.
3)deltaG° is negative at...
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em 11 Review Constants ! Predict the spontaneity of a reaction (and the temperature dependence of...
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Please show work step by step and
answer.
The Temperature Dependence of Chemical Equilibrium For an equilibrium reaction: - A+B Kc+o the following graph was obtained. 0.002 0.008 0.01 0.004 0.006 1/1 InK = -AHO + 4,50 Given the above relationship, use the graph to identify which of the following statements are "true" or "false" in this specific case. All statements refer to the forward reaction (proceeding left to right, as given) corresponding to the equilibrium constant K. The reaction...
The Temperature Dependence of Chemical Equilibrium
For an equilibrium reaction:
A + B
C + D
Given the above relationship, use the graph to identify which of
the following statements are "true" or "false" in this specific
case.
All statements refer to the forward reaction (proceeding left to
right, as given) corresponding to the equilibrium constant K.
1)The reaction is spontaneous at the highest temperatures but
not at lower temperatures.
2)deltaS° for the reaction is negative.
3)deltaG° is negative at...
For an equilibrium reaction: А + В С +D the following graph was obtained. 90 80 70 6е 50 40 зе 20 10 -10 -20 e.002 0.01 0.004 0.006 0.008 1/T Ink -AHo RT ASO + R Given the above relationship, use the graph to identify which of the following statements are "true" or "false" in this specific case. All statements refer to the forward reaction (proceeding left to right, as given) corresponding to the equilibrium constant K. deltaSo for...
13.(6 pts) The In Ke, for the reaction below was deternined through a range of temperatures and inie plotted inverse temperature. The graph is shown, with the equation of the function. SO2 (g) O2(g) SO3 (g) + → (a) Determine AHo and AS for this process In Keq as a function of Inverse Temperature 2.10E+02 1.90E+02 1.70E-02 1.50E+02 1.30E+02 1.10E-02 E 9.00E+01 Z 7.00E+01 5.00E+01 3.00E+01 2381 y 23814x - 22.491 R2 1 0.008 0.01 0.002 0.004 0.006 Inverse temperature,...
em 11 Review Constants ! Predict the spontaneity of a reaction (and the temperature dependence of the spontaneity) for each possible combination of signs for AH and AS (for the system). Part A A negative, AS positive The reaction will be spontaneous at low temperature, but nonspontaneous at high temperature, The reaction will be nonspontaneous at all temperatures. The reaction will be spontaneous at all temperatures. The reaction will be nonspontaneous at low temperature, but spontaneous at high temperature. Submit...
Which of the following describes the temperature dependence of the spontaneity of the reaction below? 2H202(0) 2H2O()+02(g) ΔΗ--196kl mol-1, AS-126 J K-1 mol-i Select the correct answer below: 0 O O O nonspontaneous at all temperatures spontaneous at all temperatures spontaneous at high temperatures and nonspontaneous at low temperatures spontaneous at low temperatures and nonspontaneous at high temperatures
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy Al and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is (pick one) This reaction is always spontaneous, but proceeds slower at temperatures below -33. °C AS is (pick one) AH is (pick one) This reaction is exothermic and proceeds faster at...
2. Decide whether each of the following statements is true or false. If false, rewrite it to make it true. a. Entropy of the universe increases in all spontaneous reactions. wo False If entropy is bw enough it con be spontaneous, b. Reactions with a negative free energy change (A-Gº <0) are product-favored and occur with rapid transformation of reactants to products. True c. An exothermic reaction will always be spontaneous. I NO when AH is negative the reaction can...
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Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions AH is (pick one) v A The reverse of this reaction is always spontaneous but proceeds slower at temperatures below – 15. °C. AS is (pick one) v AH is (pick one) v...
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