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IF ÄH and ÄS are both negative for a reaction, then the reaction is: a. nonspontaneous...
A buffer is prepared by dissolving HF and NaF in water. Which of the following is...
A buffer is prepared by dissolving HF and NaF in water. Which of the following is the net ionic equation describing how the buffer neutralizes an acid (H+) that is added to the buffer? a. H+ + OH-H20 b. H+ + NaF-Nat + HF c. H + HF-HF d. H* + H20-H30* e. H +F HF For the reaction: N2(g) + 3H2(g) 22 NH3(g) first calculate AGº using values from Table 6, and then calculate AG at 298 K when...
If AH and AS are both negative for a reaction, then the reaction is O nonspontaneous...
If AH and AS are both negative for a reaction, then the reaction is O nonspontaneous at all temperatures. O nonspontaneous at low temperatures and spontaneous at high temperatures. O spontaneous at all temperatures. O spontaneous at low temperatures and nonspontaneous at high temperatures. Question 22 3 pts What is the correct equation for Sr undergoing electron capture? 38 O 81 Sr 0 e > -1 81 Rb + 38 37 O 81 Sr 0 --> 81 Rb + 37...
20) Which statement is true concerning the stand A) The standard state for N2() is the...
20) Which statement is true concerning the stand A) The standard state for N2() is the pure gas at 1 atm. B) The standard state for N2() is the pu at a concentration of 1 mol/L. tre concerning the standard states of N2(x) and C12H22011(aq)? te for N2(8) is the pure gas at 1 atm and for C12H22011(aq) is the pure solid 20) — ndard state for N2() is the pure gas at 1 mol/L and for C12H22011(aq) is the...
spontaneous or nonspontaneous spontaneous or nonspontaneous spontaneous or nonspontaneous Consider the following reaction: CACO3(s) CaO (s)...
spontaneous or nonspontaneous
spontaneous or nonspontaneous
spontaneous or nonspontaneous
Consider the following reaction: CACO3(s) CaO (s) + CO2 (g). Estimate AG for this reaction at each of the following temperatures. (Assume that AH° and AS do not change too much within the given temperature range.) Part A 290 K Part B 1095 K Part C 1475 K
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83...
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
Consider a reaction that has a negative ΔH and a negative ΔS. Which of the following statements is TRUE? A)This reaction...
Consider a reaction that has a negative ΔH and a negative ΔS. Which of the following statements is TRUE? A)This reaction will be nonspontaneous only at low temperatures. B)This reaction will be spontaneous only at low temperatures. C)This reaction will be spontaneous at all temperatures. D)This reaction will be nonspontaneous at all temperatures. E)It is not possible to determine without more information.
Question 1 1 pts Calculate A Gas for the reaction 4NH3(g) + 30,(g) —2N2 (g) +...
Question 1 1 pts Calculate A Gas for the reaction 4NH3(g) + 30,(g) —2N2 (g) + 6H2O() from AG® values in Table 6 of your chem-132 Tables. Time ELE Attempt 3 Minu A-1141.6 kJ B.-571.2 kJ C. 312.2 kJ D. 222.7 kJ E.-1357.0 kJ ОА OB Ос OD ОЕ Question 2 1 pts For a chemical reaction, if A Hºse is positive and AS is negative, will the reaction be spontaneous or nonspontaneous at LOW temperatures? spontaneous nonspontaneous No answer...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG = +45.1 kJ/mol; no EXAMPLE 16.12 Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T = 25 °C,...
What can be said about an Endothermic reaction with a negative entropy change? The reaction is a. spontaneous at al...
What can be said about an Endothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d. spontaneous in the reverse direction at all temperatures. e. nonspontaneous in either direction at all temperatures. What can be said about an Exothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d....
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG +45.1 kJ/mol; no Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T 25 °C, PN, 0.870 atm, PH=0.250...
A buffer is prepared by dissolving HF and NaF in water. Which of the following is the net ionic equation describing how the buffer neutralizes an acid (H+) that is added to the buffer? a. H+ + OH-H20 b. H+ + NaF-Nat + HF c. H + HF-HF d. H* + H20-H30* e. H +F HF For the reaction: N2(g) + 3H2(g) 22 NH3(g) first calculate AGº using values from Table 6, and then calculate AG at 298 K when...
If AH and AS are both negative for a reaction, then the reaction is O nonspontaneous at all temperatures. O nonspontaneous at low temperatures and spontaneous at high temperatures. O spontaneous at all temperatures. O spontaneous at low temperatures and nonspontaneous at high temperatures. Question 22 3 pts What is the correct equation for Sr undergoing electron capture? 38 O 81 Sr 0 e > -1 81 Rb + 38 37 O 81 Sr 0 --> 81 Rb + 37...
20) Which statement is true concerning the stand A) The standard state for N2() is the pure gas at 1 atm. B) The standard state for N2() is the pu at a concentration of 1 mol/L. tre concerning the standard states of N2(x) and C12H22011(aq)? te for N2(8) is the pure gas at 1 atm and for C12H22011(aq) is the pure solid 20) — ndard state for N2() is the pure gas at 1 mol/L and for C12H22011(aq) is the...
spontaneous or nonspontaneous
spontaneous or nonspontaneous
spontaneous or nonspontaneous
Consider the following reaction: CACO3(s) CaO (s) + CO2 (g). Estimate AG for this reaction at each of the following temperatures. (Assume that AH° and AS do not change too much within the given temperature range.) Part A 290 K Part B 1095 K Part C 1475 K
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
Question 1 1 pts Calculate A Gas for the reaction 4NH3(g) + 30,(g) —2N2 (g) + 6H2O() from AG® values in Table 6 of your chem-132 Tables. Time ELE Attempt 3 Minu A-1141.6 kJ B.-571.2 kJ C. 312.2 kJ D. 222.7 kJ E.-1357.0 kJ ОА OB Ос OD ОЕ Question 2 1 pts For a chemical reaction, if A Hºse is positive and AS is negative, will the reaction be spontaneous or nonspontaneous at LOW temperatures? spontaneous nonspontaneous No answer...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG = +45.1 kJ/mol; no EXAMPLE 16.12 Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T = 25 °C,...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG +45.1 kJ/mol; no Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T 25 °C, PN, 0.870 atm, PH=0.250...
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