Solution: Water gas, a commercial fuel, is made by the reaction of hot...
Question
Water gas, a commercial fuel, is made by the reaction of hot coke with steam.
C (s) + H2O (g) → CO (g) + H2 (g)
When equilibrium is established at 800°C the concentrations of CO, H2, H2O are 4.00 x 10 -2, 4.00 x 10 -2, and 1.00 x 10 -2 mole/liter, respectively. What is the value of ΔG° for this reaction at 800°C?
A. 109 kJ
B. -43.5 kJ
C. 193 kJ
D. 16.3 kJ
E. none of these
Related Solutions
To examine the extent that water spontaneously decomposes to its elements at r...
Using the listed information calculate ΔG° for the reaction: a) –454.8 kJ b)...
The standard enthalpy and entropy changes of reaction are –30.20 kJ and +9.410...
In the gas phase, methyl isocyanate (CH 3NC) isomerizes to acetonitrile (CH 3C...
The equilibrium constant for the reaction AgBr(s) ⇄ Ag +(aq) + Br– (aq) is the...
Consider the following compounds and their standard free energies of formation...
Based on your knowledge of carbon allotropes, You can say that ∆G◦f of graphit...
The standard molar enthalpy of formation of NO2(g) is 33.2 kJ/mol at 25◦C and ...
A reaction at equilibrium has a value of ΔG° = -13.2 kJ/mol at 43.0°C. The val...
What is the ∆G (in kJ/mol) for a reaction at 255 Celsius that has a ∆H = 110 k...
What is the ΔG (kJ/mol) for a reaction at 25 Celsius that is: Mg3(PO4)2 (s) →...
Hydrogen peroxide (H2O2) decomposes according to the equation: H2O2(l) → H2O(...
The equilibrium constant for the reaction: AgBr(s) ⇌ Ag+(aq) + Br-(aq) is ...
Calculate ΔG° for the following reaction 3NO2(g) + H2O(l) → 2HNO3(l) + NO(g)...
For the reaction: 2C(graphite) + H2(g) → C2H2(g) ΔG° = +209.2kJ at 25°C. If ...
A weak base has a ΔG° of 24 kJ/mole. What is the approximate value for the K b...
You calculate the value of ΔG° for a chemical reaction and get a positive valu...
The standard molar Gibbs free energy of formation of NO 2 (g) at 298 K is 51.3...
Which of the following is a description of a phase change for which ΔG is posi...
At 25 oC, ΔHo = 1.895 kJ and ΔSo = – 3.363 J/K for the transition C (graphit...
Consider the following reactions for dissolving two different chloride salts i...
Iron metal will react with oxygen gas to form a variety of iron oxides. This o...
Which of the following has ΔG of = 0 at 25 oC? A) CO2 (l) B) H2O (l) ...
Which expression is true at standard concentrations: A. ΔG = 0 ...
Which of the following reactions will have the smallest equilibrium constant (...
Use Hess's law to calculate ΔG°rxn using the following information. H2O(g) + C...
Calculate ΔG°rxn for the following reaction at 1000°C. 2CO(g) + 2NO(g) → N2(g)...
Determine the equilibrium constant for the following reaction at 298 K. SO3(g...
Which of the following reactions will have the largest equilibrium constant (K...
Use Hess's law to calculate ΔG°rxn using the following information. CO(g) → C...
Estimate ΔG°rxn for the following reaction at 775 K. 2 Hg(g) + O2(g) → 2 HgO(...
Sulfuryl dichloride is formed when sulfur dioxide reacts with chlorine. The d...
Which of following has ΔG°f = 0 at 25°C? A) H2O(l) B) H2O(g) C) Na(s) D) O...
Consider the reaction below. A2 (g) + 3 B2 (g) → 2 AB3 (g) A flask is allowe...
Consider the reaction 2 Fe2O3(s) + 3 C(s) → 4 Fe(s) + 3 CO2(g), ΔH° = 462 kJ...
Which combination of ∆G◦ and K is possible at standard conditions? 1. ∆G◦ = 9...
The figure represents a reaction at 298 K. Which statement is true? 1. At poi...
Given the following free energies of formation calculate K p at 298 K for: C2...
The U.S. government now requires that automobile fuels consist of a renewable ...
Using data tabulated below, calculate ΔG r° at 25°C for C2H4 (g) + 3 O2 (g) →...
The standard free energy of formation of CS 2 (l) is 65.27 kJ⋅mol −1 at 298 K....
Calculate the standard free energy of formation of mercury (II) oxide at 298 K...
For the reaction NH4Cl (s) → NH3 (g) + HCl (g) ΔH ° = +176 kJ and ΔG ° = +91...
What is the value of the equilibrium constant K, for a reaction for which ΔG °...
A. Using the thermodynamic data provided for dissolving Na 2SO4(s) in water, t...
For each of the following chemical processes, state whether ΔS and ΔG are posi...
The definition of the standard (molar) Gibbs energy of formation (ΔG f°) para...
Calculate ΔG at 298 K for a mixture of 1.0 atm N 2, 3.0 atm H2, and 0.50 atm N...
Use the data below to calculate the standard free-energy change for the reacti...
Calculate the standard free-energy change for the formation of NO (g) from N 2...
The solubility product constant at 25°C for AgI (s) in water has the value of ...
The equilibrium constant for the following reaction is 5.0x10 8 at 25 °C. N2 ...
The reaction A(g) ⇌ B(g) has an equilibrium constant of Kp = 2.3x10-5. What ca...
Calculate the equilibrium constant, K, for the reaction at 298 K: N2O4 (g) ⇌ ...
Use Hess's law to calculate ΔG°rxn using the following information. ClO(g) + ...
The standard free energy of formation of AgCl(s) is -110 kJ/mol. ΔG° for the r...
Every sample of a pure element, regardless of its physical state, is assigned ...
A reaction is proceeding toward equilibrium. At a certain stage, the concentra...
Use Hess’s law to calculate ∆G°rxn using the following information. NO(g) + O...
If Q > K, what must be true regarding ΔG? A. it is positive B....
Determine the equilibrium constant for the following reaction at 298 K. Cl(g)...
Consider the reaction below, what is ΔG when the pressures of the gases are as...
Fill in the blanks: If ΔG°< 0, then K is _____. If ΔG° > 0, then K is _...
Water gas, a commercial fuel, is made by the reaction of hot coke with steam. ...
Given the following free energies of formation calculate Kp at 298 K for: C2H...
Water gas, a commercial fuel, is made by the reaction of hot coke with steam. ...
For the reaction: A (l) + 2 D (g) → 3 X (g) + Z (s) Having ΔG° = -2400 kJ a...
What is true if ln K is negative? A) ΔG°rxn is positive and the reaction i...
For the following reaction: 2 HBr (g) → H2(g) + Br2(g) If HBr, H2...
The standard free energy change for a chemical reaction is –71.3 kJ/mol. What ...
Hot and cold packs are commercially available for both medical treatment and f...
The standard Gibbs Free Energy of formation for N2 (g) at 25°C is: A. Positiv...