- #1
littlebearrrr
- 25
- 0
Homework Statement
Estimate the value of the equilibrium constant at 670K for the following reaction: 2NO2(g)⇌N2O4(g)
Homework Equations
ΔG°rxn = -RT*lnK
The Attempt at a Solution
This should be an easy problem. But for some reason, MasteringChem won't accept it, so I'm wondering if I did anything wrong. Here's what I did:
1) Using tabulated free energies of formation, I obtained ΔG°rxn=-2.8 kJ=-2.8x10^3 J.
2) I then divided this by 8.314 J/molK multiplied by 670K (multiplied by -1, which cancels).
3) I took e^ of both sides. K=1.65
Anyone know what I'm doing wrong? Just a small hint will suffice. Thank you in advance :)