posted by .

Carbonyl fluoride, COF2, is an important intermediate for organic fluorine compounds. It can be prepared by the following reaction:

CO2(g) + CF4(g) <==> 2COF2(g)

At 1000*C, K for this reaction is .50. What are the partial pressures of all the gases at equilibrium when the initial partial pressures of CO2 and CF4 are .713 atm?

I'm sort of confused by this problem, but this is what I have so far:

K= (.713)^2/(.713)(.713)= 1.00

.50= x^2/x^2
...which doesn't make sense. Any help would be appreciated.

K = pCOF22/(pCO2*pCF4) = 0.50.

If we have 0.713 atm for CO2 and 0.713 for CF4 initially, and I assume COF2 is 0 initially.
How much will it change? COF2 will change to 2x. CO2 and CF4 will diminish by x so the final partial pressures at equilibrium will be
pCO2 = 0.713-x
pCF4 = 0.713-x
pCOF2 = 2x
Plug in K and solve for x (Don't forget to square 2x.
Post your work if you get stuck.

The problem is that in the denominator the pressure of each gas is NOT .713 That is what it started the reaction was used up. If the partial pressure of 2CO is x, then the partial pressure of each reactant is .714-x
K= (2x)^2/(.713-x)(.713-x)= 1.00

Now solve for x.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chem

    An important process for the production of acrylonitrile C3H3N is given by the following reaction 2C3H6 + 2NH3 + 3O2 --> 2C3H3N + 6H2O A 150 -L reactor is charged tot he following partial pressures at 25 C
  2. College Chemistry Help Asap!

    Determine the values of Kp that correspond to the following values of Kc a)CO(g) + Cl2(g) <===> COCl2(g) Kc= 1.2 x 10^3 at 668 K b)2 NO(g)+ Br2(g)<===> 2 NOBr(g) Kc= 1.32 x 10^-2 at 1000 K c) 2 COF2(g)<===> CO2(g)+ …
  3. chem

    An equilibrium mixture of the following reaction was found to have [COF2] = 0.255 M and [CF4] = 0.118 M at 1000°C. What is the concentration of CO2?
  4. Chemistry(check my work)?

    An equilibrium mixture of the following reaction was found to have [COF2] = 0.255 M and [CF4] = 0.118 M at 1000°C. What is the concentration of CO2?
  5. Chem11

    The reaction 2 COF2(g)--> CO2(g) + CF4(g) has Kp = 2,001,051 at a certain temperature. What would be the value of Kp for the related reaction: 3 CO2(g) + 3 CF4(g)--> 6 COF2(g)?
  6. chem

    Now the numbers in the question are correct, (Fluorine = 10.10atm Krypton = 1.24atm). Please help. Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A …

    In a hypochlorite oxidation reaction, cyclohexanol plus NaOCL & aq HOAc results in cyclohexanone. The intermediate in this reaction in ROCl where R = cyclohexyl. a.) Show how this intermediate decomposes to product in a E2-like reaction …
  8. organic chemistry

    I really need help with this question. It is located at the link below. Question #2. I understand the general reaction but I need help with the actual mechanism. Olopatadine is a drug used topically to treat the itching associated …
  9. Chemisty

    Fluorine gas can react with ammonia gas to produce dinitrogen tetrafluoride gas and hydrogen fluoride gas. This reaction is described by the following balanced equation: 5 F2 (g) + 2 NH3 (g) N2F4 (g) + 6 HF (g) What mass of hydrogen …
  10. chemistry

    If you need to multiply the following reaction by 2 to be an intermediate reaction in a Hess's law problem, what would be the final value for the enthalpy of reaction you use for this intermediate reaction?

More Similar Questions