Chemistry

posted by .

Decomposition reaction: CH2=CH2(g)---> CH4(g) + C (Graphite)
If the decomposition begins at 10c and 40.0 atm with a gas density of .215 g/ml and the temp increases by 950K. (a) what is the final temperature of the confined gas (ignore volume of graphite and use the van der waals equation)?

I have this for van der waals: (P + (n^2a/V^2)) * (V -nb) = nRT

I know my a and b constants. a = 2.25, b = .0428.

Do I need to use the density to find n? .215g/ml = 215g/L. Can I assume that there is 1 Liter in my equation. If I do that then there are 13.4 moles in the gas.

This would make my equation (P + (3.14^2*2.25/1^2)*(1-3.14*.0428)= 3.14*.0821*1233

This equation doesnt seem right. Can anyone help me figure out where I'm making my mistakes?

  • Chemistry -

    anyone?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. ap chemistry

    what does H2 + CH2 form? (what product?) What is CH2?
  2. Chemistry

    It is difficult to type these but I'll do my best. This is the first question and I just don't get it. My professor is out of the country so any help would be appreciated. Give the IUPAC name for each of the following alkanes: CH3 …
  3. Chemmistry gas laws

    CH2==Ch2(g) ----> CH4(g) + C (graphite) If the decomposition begina at 10 degrees C and 50.0 atm with a gas density of 0.215 g/mL and the temperature increases by 950K, what is the final pressure of the confined gas (ignore the …
  4. Chemistry

    1)Which compound below would be expected to have the highest boiling point?
  5. Chemistry

    Which compound below would be expected to have the highest boiling point?
  6. Chemistry

    Which compound below would be expected to have the highest boiling point?
  7. Chemistry

    Which compound below would be expected to have the highest boiling point?
  8. Chemistry

    Indicate which of the metallation reactions given below would be thermodynamically favourable on the basis of the pKa data in non-aqueous media provided. What is the underlying principle that determines whether the reaction occurs?
  9. Chemistry

    What volume of nitrogen gas can be produced from he decomposition of 37.6 L of ammonia with both gases measured at 725 degree celsius and 5.05 pressure?
  10. Chemistry

    Draw and repeat unit for a reaction product of glycol: HO-CH2-CH2-CH2-CH2-OH with the following carboxylic acid: HO-C-CH2-CH2-C-OH = = O O

More Similar Questions