Question

In: Chemistry

Some of the reactions for coal gasification are as follows: Reaction 1:    C(s) + H2O(g) «...

Some of the reactions for coal gasification are as follows:

Reaction 1:    C(s) + H2O(g) « CO(g) + H2(g)                 ΔHo = 131.3 kJ/mol

Reaction 2:    CO(g) + H2O(g) «CO2(g) + H2(g)                 ΔHo = -41.2 kJ/mol

Reaction 3:    CO(g) + 3H2(g) O(g) « H2O(g) + CH4(g) ΔHo = -205.9 kJ/mol

1.Write the equilibrium constant expression for reaction 3.

2. For all three reactions, predict the way the equilibrium will shift in response to an decrease in pressure. EXPLAIN.

3. For all three reactions, predict the direction in which each equilibrium shifts in response to an increase in reaction volume. EXPLAIN.

4a. Write the ionization of HNO3(aq) using Bronsted-Lowry definition. Identify conjugate acid/base pairs.

b. Find the pH of a .10 M HNO3(aq) solution.

5a. Write the ionization of HClO2(aq) using Bronsted-Lowry definition. Identify conjugate acid/base pairs.

b. Find the pH of a .10 M HClO2 (aq). Ka=1.2 x 10-2.

6. Explain why you set up your calculation the way you did in questions 4 and 5.

Solutions

Expert Solution

try


Related Solutions

Calculate ΔrH for the following reaction: C(s)+H2O(g)→CO(g)+H2(g) Use the following reactions and given ΔrH's. C(s)+O2(g)→CO2(g), ΔrH=...
Calculate ΔrH for the following reaction: C(s)+H2O(g)→CO(g)+H2(g) Use the following reactions and given ΔrH's. C(s)+O2(g)→CO2(g), ΔrH= -393.5 kJmol−1 2CO(g)+O2(g)→2CO2(g), ΔrH= -566.0 kJmol−1 2H2(g)+O2(g)→2H2O(g), ΔrH= -483.6 kJmol−1 Express your answer using one decimal place.
1.) The following reaction was carried out in a 2.50L reaction vessel at 1100 K: C(s)+H2O(g)?CO(g)+H2(g)...
1.) The following reaction was carried out in a 2.50L reaction vessel at 1100 K: C(s)+H2O(g)?CO(g)+H2(g) If during the course of the reaction, the vessel is found to contain 5.50mol of C, 15.8mol of H2O, 3.10mol of CO, and 8.20mol of H2, what is the reaction quotient Q? 2.) The reaction 2CH4(g)?C2H2(g)+3H2(g) has an equilibrium constant of K = 0.154. If 6.70mol of CH4, 4.40mol of C2H2, and 10.90mol of H2 are added to a reaction vessel with a volume...
At 1000 K, the value of Kc = 0.032 for the reaction: C(s) + H2O(g) ⟺...
At 1000 K, the value of Kc = 0.032 for the reaction: C(s) + H2O(g) ⟺ CO(g) + H2(g) Calculate the equilibrium concentrations of H2O, CO, and H2 in a reaction mixture obtained by heating 6.05 mol of (H2O) steam and excess of solid carbon in a 5.90 L container.
1. For which system is ∆S<0? H2O(l)→H2O(g) H2O(g)→H2O(s) H2O(s)→H2O(l) H2O(s)→H2O(g) 2. Which pure substance under standard...
1. For which system is ∆S<0? H2O(l)→H2O(g) H2O(g)→H2O(s) H2O(s)→H2O(l) H2O(s)→H2O(g) 2. Which pure substance under standard conditions would have the highest entropy? O2 HCl CH3OH S
The following reaction was carried out in a 4.00 L reaction vessel at 1100 K: C(s)+H2O(g)⇌CO(g)+H2(g)...
The following reaction was carried out in a 4.00 L reaction vessel at 1100 K: C(s)+H2O(g)⇌CO(g)+H2(g) If during the course of the reaction, the vessel is found to contain 5.00 mol of C, 14.8 mol of H2O, 3.30 mol of CO, and 8.60 mol of H2, what is the reaction quotient Q? Enter the reaction quotient numerically.
Calculate the standard enthalpy change for the following reaction at 25 °C. H2O(g)+C(graphite)(s) ----> H2(g)+CO(g) deltaH...
Calculate the standard enthalpy change for the following reaction at 25 °C. H2O(g)+C(graphite)(s) ----> H2(g)+CO(g) deltaH rxn=_____kJ
1. Determine the enthalpy for this reaction: 2NaOH(s)+CO2(g) Na2CO3(s)+H2O(l) 2. Consider the reaction Na2CO3(s)Na2O(s)+CO2(g) with enthalpy...
1. Determine the enthalpy for this reaction: 2NaOH(s)+CO2(g) Na2CO3(s)+H2O(l) 2. Consider the reaction Na2CO3(s)Na2O(s)+CO2(g) with enthalpy of reaction Hrxn=321.5kJ/mol What is the enthalpy of formation of Na2O(s)? Express your answer in kilojoules per mole to one decimal place.
5. Consider the reaction: C12H22O11 + H2O → 2C6H12O6 Some data for this reaction follows: Experiment...
5. Consider the reaction: C12H22O11 + H2O → 2C6H12O6 Some data for this reaction follows: Experiment [C12H22O11] (M) [H2O] (M) Initial Rate of Appearance of C6H12O6 (M/s) 1 0.100 55.5 2.30 × 10−6 2 0.350 55.5 8.05 × 10−6 3 0.100 40.0 2.30 × 10−6 a. Write the rate law for this reaction. b. Calculate the rate constant. c. At what rate does C12H22O11 disappear if the initial concentrations are [C12H22O11] = 0.250 M and [H2O] = 45.0 M? (show...
Consider the reaction 2KHSO3(s) ⇌ K2SO3(s) + H2O(g) + SO2(g) at equilibrium. What happens to the...
Consider the reaction 2KHSO3(s) ⇌ K2SO3(s) + H2O(g) + SO2(g) at equilibrium. What happens to the partial pressure of H2O(g) if the volume of the reaction flask is doubled? (increases, decreases, nothing)
For C(s) + H2O(g) ⇌ CO(g) + H2(g) H = +. In which direction will the...
For C(s) + H2O(g) ⇌ CO(g) + H2(g) H = +. In which direction will the reaction shift if heat is removed from the system, C is added, H2O is removed, CO is added, and H2 is removed. (a) right, left, no change, left, right (b) left, left, right, left, right (c) left, right, left, left, right (d) left, no change, left, left, right (e) None of the above
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT