What is it? How do I calculate it? How do I change it?
For A + 3B C ∆H = +30 kcal/mole change
result
why
Add reactant
Add product
“quenching the fire”
Heat
Pressurize
It needs it (endothermic; ∆ H >0) Product has fewer moles (1 < 3)
“stoking the fire”
5
What is it? How do I calculate it? How do I change it? 2NO(g) + O 2(g) ? 2NO2(g)
∆H = +250 Kcal/mol
change 1. add [NO] 2. add [N O 2] 3. add [O 2] 4. remove [NO] 5. remove [NO 2 ] 6. remove [O 2] 7. Increase Pressure 8. Increase Temperature 9. Decrease Pressure 10. Decrease Temperature
shift (3 to 2) (endo)
6