Physical chemistry
The following reaction is nonspontaneous at room temperature and endothermic: 3C(graphite+2H20(g) CH4(g) +2CO(g) As the temperature is raised, the equilibrium constant will become equal to unity at some point. Estimate this temperature using data from Table C..3
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Answer on back of the book: 1023 K 5.23 The following reaction is nonspontaneous at room...
Answer on back of the book: 1023 K
5.23 The following reaction is nonspontaneous at room tem- perature and endothermic: CH4(g)+2CO(g) 3C(graphite) + 2H2O(g) = As the temperature is raised, the equilibrium constant will be- come equal to unity at some point. Estimate this temperature using data from Table C.3. Chemical Thermodynamic Properties at Several Temperatures and 1 bar Table C.3 H-H298 A,G A H° ΔΗ JK-1mol- JK-mol- kJ mol T/K kJ mol kJ mol-1 C (graphite) 0 0.000 0.000...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a b...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a battery without plugging it in. C. Salt dissolving in water d. Freezing a popsicle at room temperature 2. For the following equilibrium constant values, indicate whether the process is spontaneous or nonspontaneous AND whether the value of ArxnGº is greater than less than or equal to zero by circling the appropriate response. Equilibrium Constant Value Is the reaction...
A mixture of gases is at equilibrium: CH4 (g) + H2O (g) → CO (g) +...
A mixture of gases is at equilibrium: CH4 (g) + H2O (g) → CO (g) + 3 H2 (g) ∆H = 206.103 kJ (a) Does the equilibrium shift to the left or to the right when some H2O (g) is removed from the reaction mixture? (b) Does the equilibrium shift to the left or to the right when some CO (g) is removed from the reaction mixture? (c) In which direction does the equilibrium shift as the temperature is raised?...
Methane and water react to form hydrogen and carbon monoxide, like this: CH (9)+H_0(9) — 3H2(0)+CO(g)...
Methane and water react to form hydrogen and carbon monoxide, like this: CH (9)+H_0(9) — 3H2(0)+CO(g) The reaction is endothermic. Suppose a mixture of CH4,H,O, H, and CO has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation change in composition shift in equilibrium to the right...
A) A reaction has an equilibrium constant of Kp=0.280 at 44 ∘C. Find ΔG∘rxn for the...
A) A reaction has an equilibrium constant of Kp=0.280 at 44 ∘C. Find ΔG∘rxn for the reaction at this temperature. Find for the reaction at this temperature. 3.35 kJ -3.35 kJ 0.404 kJ 0.466 kJ B) Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → CO2(g) + Fe(s) ΔH= -11.0 kJ; ΔS = -17.4 J/K Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → CO2(g) + Fe(s) = -11.0 kJ; = -17.4...
4. Consider the reaction 3 C (graphite)2 H2O (g) CH4 (g) 2 CO (g) The following...
4. Consider the reaction 3 C (graphite)2 H2O (g) CH4 (g) 2 CO (g) The following data are needed (all are at 298 K): S(J mol K) AH(kJ mol AAG(kJ mol) compound C, graphite 0 5.740 Н.О (g) - 241.82 188.83 - 228.57 CH4 (g) 186.26 -74.81 - 50.72 СО (g) 197.67 - 137.17 - 110.53 a) Determine A,G° and K for this reaction at 298 K and comment on the spontaneity of this process b) If you find that...
Consider the following reaction: 2CH4(g)⇌C2H2(g)+3H2(g) The reaction of CH4 is carried out at some temperature with...
Consider the following reaction: 2CH4(g)⇌C2H2(g)+3H2(g) The reaction of CH4 is carried out at some temperature with an initial concentration of [CH4]=0.085M. At equilibrium, the concentration of H2 is 0.020 M. Find the equilibrium constant at this temperature. Express your answer using two significant figures.
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from room temperature to 100 degrees C, would the reaction be exothermic of endothermic? Why?
Now let us do some Le Chatelier C(s)+H2O (g)←→CO (g) +H2 (g)AH-+131 kJ (in case you...
Now let us do some Le Chatelier C(s)+H2O (g)←→CO (g) +H2 (g)AH-+131 kJ (in case you don't remember, this is an endothermic reaction). 4. A rigid container holds a mixture of graphite pellets (C(s)), water vapor, carbon monoxide gas, and hydrogen gas at equilibrium. State whether the number of moles of CO (g) in the container will increase, decrease, or remain the same after each of the following disturbances is applied to the original mixture. For each case, assume that...
Part A Consider the following reaction: 2CH4(g) = C2H2(g) + 3H2(g) The reaction of CH4 is...
Part A Consider the following reaction: 2CH4(g) = C2H2(g) + 3H2(g) The reaction of CH4 is carried out at some temperature with an initial concentration of (CH4) = 0.094M. At equilibrium, the concentration of H, is 0.014 M. Find the equilibrium constant at this temperature. Express your answer using two significant figures. Va ΑΣΦ ? K. = Submit Request Answer Provide Feedback Next >
Answer on back of the book: 1023 K
5.23 The following reaction is nonspontaneous at room tem- perature and endothermic: CH4(g)+2CO(g) 3C(graphite) + 2H2O(g) = As the temperature is raised, the equilibrium constant will be- come equal to unity at some point. Estimate this temperature using data from Table C.3. Chemical Thermodynamic Properties at Several Temperatures and 1 bar Table C.3 H-H298 A,G A H° ΔΗ JK-1mol- JK-mol- kJ mol T/K kJ mol kJ mol-1 C (graphite) 0 0.000 0.000...
1. Which of the following processes are spontaneous or non-spontaneous? a. 2 H2(g) + O2(g) → 2 H 0(2) b. Recharging a battery without plugging it in. C. Salt dissolving in water d. Freezing a popsicle at room temperature 2. For the following equilibrium constant values, indicate whether the process is spontaneous or nonspontaneous AND whether the value of ArxnGº is greater than less than or equal to zero by circling the appropriate response. Equilibrium Constant Value Is the reaction...
Methane and water react to form hydrogen and carbon monoxide, like this: CH (9)+H_0(9) — 3H2(0)+CO(g) The reaction is endothermic. Suppose a mixture of CH4,H,O, H, and CO has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation change in composition shift in equilibrium to the right...
4. Consider the reaction 3 C (graphite)2 H2O (g) CH4 (g) 2 CO (g) The following data are needed (all are at 298 K): S(J mol K) AH(kJ mol AAG(kJ mol) compound C, graphite 0 5.740 Н.О (g) - 241.82 188.83 - 228.57 CH4 (g) 186.26 -74.81 - 50.72 СО (g) 197.67 - 137.17 - 110.53 a) Determine A,G° and K for this reaction at 298 K and comment on the spontaneity of this process b) If you find that...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from room temperature to 100 degrees C, would the reaction be exothermic of endothermic? Why?
Now let us do some Le Chatelier C(s)+H2O (g)←→CO (g) +H2 (g)AH-+131 kJ (in case you don't remember, this is an endothermic reaction). 4. A rigid container holds a mixture of graphite pellets (C(s)), water vapor, carbon monoxide gas, and hydrogen gas at equilibrium. State whether the number of moles of CO (g) in the container will increase, decrease, or remain the same after each of the following disturbances is applied to the original mixture. For each case, assume that...
Part A Consider the following reaction: 2CH4(g) = C2H2(g) + 3H2(g) The reaction of CH4 is carried out at some temperature with an initial concentration of (CH4) = 0.094M. At equilibrium, the concentration of H, is 0.014 M. Find the equilibrium constant at this temperature. Express your answer using two significant figures. Va ΑΣΦ ? K. = Submit Request Answer Provide Feedback Next >
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