Equilibrium Calculations

Questions 1-6 deal with the following reaction:

1. In what direction will the reaction at 440⁰C proceed if:
[HBr]= 1.0x10²M
[H₂]=5.0x10^-3M
[Br₂]=1.5x10^-2M
and K_eq=50 at 440⁰C.

2. In what direction will the reaction at 440⁰C proceed if:
[H₂]= 0.60M
[HBr]=1.25M and
[Br₂]=0

3. What is [HBr] after equilibrium is reached for the problem described in question #2?

4. Determine K_eq at a certain temperature if 0.80 mol HBr is produced after 0.50 mol H₂ and Br₂ react.

5. At a certain temperature, K_eq=6.30x10². What is the equilibrium concentration of H₂ if 4.50mol of each of the three species were placed into a 3.00L flask?

6. What is [HBr] after equilibrium is reached for the problem described in question #5?

7. Determine K_eq for the following reaction if 0.0500M N₂O⁴ is placed in a container and it decomposes to an equilibrium value of 0.0155M..