The system: 2A + B ↔ 2C ; initially started with 1 mole of B and...

The system: 2A + B ↔ 2C ; initially started with 1 mole of B and 1 mol A in a 1L flask. Keq = 6.8 x 10-5 To calculate the equilibrium concentrations a simplifying assumption (approximation) can be made.

True

False

Solutions

Expert Solution

2A + B ↔ 2C

I 1 1 0

C -2x -x 2x

E 1-2x 1-x 2x

Ka = [C]^2/[A]^2[B]

6.8*10^-5 = (2x)^2/(1-2x)(1-x)

6.8*10^-5 *(1-2x)(1-x) = 4x^2

x = 0.0041

[A] = 1-2x = 1-2*0.0041 = 0.9918M

[B] = 1-x = 1-0.0041 = 0.9959 M

True >>>>answer

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=240...

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=240 mmHg. At equilibrium, PA=41 mmHg.

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=270...

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=270 mmHg . At equilibrium, PA=55 mmHg .

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=270...

For the reaction 2A(g)⇌B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=270 mmHg . At equilibrium, PA=55 mmHg . Calculate the value of Kp. (Assume no changes in volume or temperature.) Include many steps please.

Consider the gas phase reversible reaction 2A ↔ B that occurs at atmospheric pressure. a) If...

Consider the gas phase reversible reaction 2A ↔ B that occurs at atmospheric pressure. a) If the equilibrium constant Ka = 0.1, what are the equilibrium mole fractions of A and B? b) Assuming the reaction is elementary, write the rate law using kA and k-A as the forward and reverse rate constants, respectively. What is the equilibrium constant Kc in terms of kA and k-A? Assuming an ideal gas system, write an expression for Ka in terms of kA...

Part A Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D where the heats of formation...

Part A Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D where the heats of formation are given in the following table: Substance ΔH∘f (kJ/mol) A -241 B -391 C 197 D -497 Express your answer in kilojoules. Hints ΔH∘rxn = 273 kJ SubmitMy AnswersGive Up Correct Part B For the reaction given in Part A, how much heat is absorbed when 2.80 mol of A reacts? Express your answer numerically in kilojoules. Hints kJ SubmitMy AnswersGive Up Part C...

In the gas-phase reaction 2A+B ⇄ 3C + 2D, it was found that when 1.50 mole...

In the gas-phase reaction 2A+B ⇄ 3C + 2D, it was found that when 1.50 mole A, 2.00 mole B and 1.00 mole D were mixed and allowed to cometo equilibrium at 25oC, the resulting mixture contained 1.20 mol C at a total pressure of 2.00 bar. Calculate (a) the mole fractions of each species at equalibrium xA=_______, xB=_______, xc=_______, xD=________ (b) Kx =_________ (c)Kp=_______ (d) ∆rGo=_________ Please enter all answers in (a) with 3 decimals. for example, 0.4467 is...

Which of the following reactions have a positive ΔSrxn? Check all that apply. A+2B>>>>2C..... A+B>>>>3C...... 2A+2B>>>>3C.........

Which of the following reactions have a positive ΔSrxn? Check all that apply. A+2B>>>>2C..... A+B>>>>3C...... 2A+2B>>>>3C...... A+B>>>>>>2C

If possible, find A + B, A − B, 2A, and 2A − 5B. (If not...

If possible, find A + B, A − B, 2A, and 2A − 5B. (If not possible, enter IMPOSSIBLE.) A = 3 −1 1 2 4 3 , B = −1 1 −5 −4 3 −2 (a) A + B (b) A − B (c) 2A (d) 2A − 5B

1. ¬B∨(G↔J), H→(B&C) ∴(H&J)→G 2. A∨B, C↔¬(B∨D) ∴C→A 3. (A&B) ↔ (F→G), (A&F) & B∴(G→R)→R 4....

1. ¬B∨(G↔J), H→(B&C) ∴(H&J)→G 2. A∨B, C↔¬(B∨D) ∴C→A 3. (A&B) ↔ (F→G), (A&F) & B∴(G→R)→R 4. T→¬B, T→¬D ∴ T→¬(B∨D) 5. ¬(M∨¬S), S→(R→M) ∴A → (¬R∨T) 6. (F&G) → I, (I∨J) → K ∴F→(G→K) 7. ¬U, O→G, ¬(O∨G) →U ∴G Prove that the arguments are valid by constructing a dedication using the rules MP, MT, DN, Conj, Simp, CS, Disj, DS, DM, CP, HS, BE, and DL. Use CP if needed.

Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D Use the following data: Substance ΔH∘f (kJ/mol)...

Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D Use the following data: Substance ΔH∘f (kJ/mol) A -261 B -381 C 197 D -521 Express your answer in kilojoules. DETAILED STEPS PLEASE! THANKS <3

Subjects